Mobile I/O

These filters are designed for DirectShow application developers, so that they may make their applications compatible with the majority of AJA's windows based hardware. These filters are meant to be used programmatically, and will not necessarily work with every DirectShow application without work being done to explicitly support them. Note: DirectShow is a trademark of Microsoft.

These filters are designed for DirectShow application developers, so that they may make their applications compatible with the majority of AJA's windows based hardware. These filters are meant to be used programmatically, and will not necessarily work with every DirectShow application without work being done to explicitly support them. Note: DirectShow is a trademark of Microsoft.

This updated driver contains several updates and improvements for Io Express and AJA Control Room. Please read the Release Notes for complete information.

This update contains several updates and improvement across the KONA, Io and T-TAP products. Please read the Release Notes for complete details on specific products.

This updated driver adds support for the KONA 4 card as well as several updates and improvements - including a new version of AJA Control Room. Please read the Release Notes for complete information.

This update adds support for KONA 4 as well as several updates and improvement across the KONA, Io and T-TAP products. Please read the Release Notes for complete details on specific products.

This update to the AJA Adobe plug-in is for use with Adobe Premiere Pro CC/CC 2014, After Effects CC/CC 2014, Photoshop CC/CC 2014, Prelude CC/CC 2014, or Speed Grade CC/CC 2014 running under OSX 10.9 (Mavericks).

AJA's Mac hardware driver v10.5.2 is recommended for use with this plug-in. Please be sure to download and install the latest associated driver for this release. See the Release Notes for additional information.

This update to the AJA Adobe plug-in is for use with Adobe Premiere Pro CC/CC 2014, After Effects CC/CC 2014, Photoshop CC/CC 2014, Prelude CC/CC 2014, or Speed Grade CC/CC 2014 running under Windows.

AJA's Windows hardware driver v10.5.1 is recommended for use with this plug-in. Please be sure to download and install the latest associated driver for this release. See the Release Notes for additional information.

This update to the AJA Adobe plug-in is for use with Adobe Premiere Pro CC, After Effects CC, Photoshop CC, Prelude CC, Encore CC and Speed Grade CC running under Windows.

AJA's hardware driver v10 is recommended for use with this plug-in. Please be sure to download and install the latest associated driver for this release. See the Release Notes for additional information.

This update to the AJA Adobe plug-in is for use with Adobe Premiere Pro CC, After Effects CC, Photoshop CC, Prelude CC, Encore CC and Speed Grade CC running under OSX 10.9 (Mavericks).

AJA's hardware driver v10 is recommended for use with this plug-in. Please be sure to download and install the latest associated driver for this release. See the Release Notes for additional information.

This update includes AJA Control Room v1.0 in place of VTR Xchange. AJA Control Room is installed as part of the default driver installation, but is also available for download separately from the AJA website: www.aja.com/products/aja-control-room.

Please read the Release Notes for complete details on specific products.

This is the final version of VTR Xchange. Beginning with Mac driver v10.5.2, AJA Control Room™ replaces VTR Xchanage and is installed by default with the AJA Mac driver installation.

This update adds support for Io XT and T-TAP on Windows systems with Thunderbolt connections. Please read the Release Notes for complete details on specific products.

This update adds High Frame Rate (HFR) support for Io 4K as well as several improvements and updates to other products and supporting software. Please read the Release Notes for complete details on specific products.

This update to the AJA Adobe plug-in is for use with Adobe Premiere Pro CS 6/CC, After Effects CS 6/CC, Photoshop CS6/CC, Prelude CS6/CC, Encore CS6/CC and Speed Grade CC running under Windows.

AJA's hardware driver v10.5.1 is recommended for use with this plug-in. Please be sure to download and install the latest associated driver for this release. See the Release Notes for additional information.

This update to the AJA Adobe plug-in is for use with Adobe Premiere Pro CS 6/CC, After Effects CS 6/CC, Photoshop CS6/CC, Prelude CS6/CC, Encore CS6/CC and Speed Grade CC running under OSX 10.9 (Mavericks).

AJA's hardware driver v10.5 is recommended for use with this plug-in. Please be sure to download and install the latest associated driver for this release. See the Release Notes for additional information.

This update adds new functionality and improvements. Please read the Release Notes for complete details on specific products.

This update to the AJA Adobe plug-in is for use with Adobe Premiere Pro CS 6/CC, After Effects CS 6/CC, Photoshop CS6/CC, Prelude CS6/CC, Encore CS6/CC and Speed Grade CC running under OSX 10.9 (Mavericks).

AJA's hardware driver v10.4.8 is recommended for use with this plug-in. Please be sure to download and install the latest associated driver for this release. See the Release Notes for additional information.

This update adds support for OSX 10.9 (Mavericks). Please read the Release Notes for complete details on specific products.

This update adds support for Io XT and T-TAP on Windows systems with Thunderbolt connections. Please read the Release Notes for complete details on specific products.

This update addresses several issues across the KONA and Io products. Please read the Release Notes for complete details on specific products.

This update to the AJA Adobe plug-in is for use with Adobe Premiere Pro CS 6/CC, After Effects CS 6/CC, Photoshop CS6/CC, Prelude CS6/CC, Encore CS6/CC and Speed Grade CC. 

AJA's hardware driver v10.4.0 is recommended for use with this plug-in. Please be sure to download and install the latest associated driver for this release. See the Release Notes for additional information.

This update addresses several issues across the KONA and Io products. Please read the Release Notes for complete details on specific products.

This update to the AJA Adobe plug-in is for use with Adobe Premiere Pro CS 6/CC, After Effects CS 6/CC, Photoshop CS6/CC, Prelude CS6/CC, Encore CS6/CC and Speed Grade CC. 

AJA's hardware driver v10.4.5 is recommended for use with this plug-in. Please be sure to download and install the latest associated driver for this release. See the Release Notes for additional information.

(Release Date 11/5/2009, zip archive)

This is the initial release of Io Express software for Windows, complete with release notes, manual and software installer. Features provided include the Machina application, plug-ins for Adobe Premiere Pro, After Effects, Photoshop, Fusion, Combustion, and support for Sony Vegas. Please read the included release notes for additional information. Click here to download the updated Io Express manual.

(Release Date 11/5/2009, zip archive)

This is the initial release of Io Express software for Windows, complete with release notes, manual and software installer. Features provided include the Machina application, plug-ins for Adobe Premiere Pro, After Effects, Photoshop, Fusion, Combustion, and support for Sony Vegas. Please read the included release notes for additional information.
Go to Io Express Archive Page (for older Io Express Software Versions)

(Release Date 5/20/2010, zip archive)

This software updates AJA Windows software for Io Express and KONA. Support has been added in this release for Adobe Premiere Pro, After Effects, and Photoshop CS5 (AJA plug-ins are now all 64 bit). Also added were support for Premiere Pro CS5's Mercury Playback Engine, CineForm stereoscopic playback, and Real-Time Apple ProRes playback support for AJA Premiere Pro sequences. Please read the included release notes for additional information.

(Release Date 6/27/2011, zip archive)

This Io Express release updates AJA Mac Plug-ins to support Adobe Premiere Pro CS5.5, Adobe After Effects CS 5.5, and Adobe Photoshop 5.1. AJA's new KONA and Io Express plug-ins for Adobe Premiere Pro CS 5.5 provide a 2x increase in real-time effects and video stream performance, taking full advantage of Adobe's powerful Mercury Engine architecture. This release is required for use with Io Express driver 9.0.1. Please read the included release notes for additional information.

(Released 6/20/2011)

This release is recommended for use with Final Cut Pro X and is also backward compatible with Final Cut Pro 7. New features for this release include batch capture and more advanced clip naming. This .zip archive includes the software application and user manual.

(Released 6/21/2010)

This release is required for use with KONA and Io Express drivers version 8.0. This release provides CS5 AJA Mac Plug-Ins for Adobe, which include application plug-ins for Adobe Premiere Pro, After Effects, and Photoshop (release notes and user manual included in the download).

(Released 11/5/2009)

This release is required for use with KONA and Io Express drivers version 7.1. This release provides CS4 AJA Mac Plug-Ins for Adobe, which include application plug-ins for Adobe Premiere Pro, After Effects, and Photoshop (user manual included in the download). Click here for the related release notes.

This update (v10.4.4) resolves an issue where two different applications sending audio to a KONA, Io, or T-TAP simultaneously could cause an "echo" effect in the audio output.

Compatible with Mac OS X 10.7 (Lion) and Mac OS X 10.8 (Mountain Lion). Please read the included release notes for complete details on specific products.

This update (v10.4.3) addresses several issues with HDMI input [on devices that support HDMI input] as well as HDMI audio and channel assignments.

Compatible with Mac OS X 10.7 (Lion) and Mac OS X 10.8 (Mountain Lion). Please read the included release notes for complete details on specific products.

This update (v10.4.2) improves audio functionality with KONA, Io and T-TAP products in OS X 10.8.2 Mountain Lion. In addition, a new feature has been included in AJA's VTR Xchange software which allows automatic event creation within Apple FCP X as part of the capture process. Users no longer have to capture media and then import that captured material to FCP X. Events are automatically created at the end of each capture session, reducing the number of steps needed to get material from tape into FCP X.

The updated VTR Xchange software's included as part of the standard driver installer and will appear in the Applications folder.

Compatible with Mac OS X 10.7 (Lion) and Mac OS X 10.8 (Mountain Lion). Please read the included release notes for complete details on specific products.

This release is for use with the latest AJA hardware driver. Please be sure to download and install the latest associated driver for this release. See the release notes for additional information.

This update addresses several issues across the KONA and Io products. Please read the included release notes for complete details on specific products.

This release is for use with the latest AJA hardware driver. Please be sure to download and install the latest associated driver for this release. See the release notes for additional information.

This update addresses several issues across the KONA, Io and T-TAP products. Compatible with Mac OS X 10.7 (Lion) and Mac OS X 10.8 (Mountain Lion). Please read the included release notes for complete details on specific products.

Updated driver for use with AJA Windows Open I/O Plug-in v10.3. Install this driver before installing AJA Windows Open I/O Plug-in. See the release notes for additional information.

This update provides compatibility with Gatekeeper functionality in Mac OS X 10.8 (Mountain Lion) and addresses several additional issues. Compatible with Mac OS X 10.7 (Lion) and Mac OS X 10.8 (Mountain Lion). Please read the included release notes for complete details.

Updated driver for use with AJA Adobe Plug-in 10.3.0. Install this driver before installing AJA Windows Plug-ins for Adobe CS6. See the release notes for additional information.

This release is for use with the latest AJA hardware driver (10.3.1 on Mac and 10.3.0 on PC). Please be sure to download and install the latest associated driver for this release. See the release notes for additional information.

This release is for use with the latest AJA hardware driver (10.3.1 on Mac and 10.3.0 on PC). Please be sure to download and install the latest associated driver for this release. See the release notes for additional information.

This is a maintenance update addressing several issues. Compatible with Mac OS X 10.7 (Lion). Please read the included release notes for complete details.

This NDD version is recommended for most users. It does not include the Macintosh Desktop feature. This is a maintenance update addressing several issues. Compatible with Mac OS X 10.7 (Lion). Please read the included release notes for complete details.

This driver version unifies support for all partner software including Final Cut Pro X (10.0.4) with improved Broadcast Monitor functionality. AJA has prepared a document that explains how editors can use AJA products with this latest version of Final Cut Pro X. Please click here to download the PDFdocument by itself. Compatible with Mac OS X 10.7 (Lion). Please read the included release notes for complete details.

This NDD version is recommended for most users. It does not include the Macintosh Desktop feature. This driver version unifies support for all partner software including Final Cut Pro X (10.0.4) with improved Broadcast Monitor functionality. AJA has prepared a document that explains how editors can use AJA products with this latest version of Final Cut Pro X. Please click here to download the PDF document by itself. Compatible with Mac OS X 10.7 (Lion). Please read the included release notes for complete details.

This release adds support for new AJA Open IO plugin v10.1, including ability to control p vs. psf output when using progressive formats in Avid Media Composer. Please read the included release notes for details. Note: for Avid use, AJA Open I/O plug-ins are required in conjunction with v10.1 software; all Avid-related downloads can be found on a single AJA Avid Support page for your convenience. This download does not contain Machina or application plug-ins. If you download this driver, please download and install Plug-ins as desired (found below on this webpage).

This release is for use with AJA driver version 10.1. Please read the release notes for further information. These plug-ins require AJA driver release v10.1 or later. A new manual is available for download.

This release adds the ability to force progressive output via the Video Setup tab of the AJA Control Panel. This can be particularly useful for Avid software users who work with 1080PsF material and want to use an HDMI monitor which requires true progressive signal. Please read the included release notes for complete details. Note: for Avid use, AJA Open I/O plug-ins are required in conjunction with v10.1 software; all Avid-related downloads can be found on a single AJA Avid Support page for your convenience.

Lion compatible. Note: this driver version is not designed to support Final Cut Pro X.

This release is for use with AJA driver version 10.1. Please read the release notes for further information. These plug-ins require AJA driver release v10.1 or later. A new manual is available for download.

This release adds support for Avid Media Composer 6.0, Symphony 6.0, and NewsCutter 10.0, in addition to a Windows AJA Control Panel plus other fixes and improvements. Please read the included release notes for complete details. Note: for Avid use, AJA Open I/O plug-ins are required in conjunction with v10 software; all Avid-related downloads can be found on a single AJA Avid Support page for your convenience. This download does not contain Machina or application plug-ins. If you download this driver, please download and install Plug-ins as desired (found below on this webpage).

This release adds support for Avid Media Composer 6.0, Symphony 6.0, and NewsCutter 10.0, in addition to a graphically enhanced AJA Control Panel and other fixes and improvements. Please read the included release notes for complete details. Note: for Avid use, AJA Open I/O plug-ins are required in conjunction with v10 software; all Avid-related downloads can be found on a single AJA Avid Support page for your convenience.

Lion and Snow Leopard OS compatible. Note: this driver version is not designed to support Final Cut Pro X.

This release is recommended for use with Final Cut Pro X and is also backward compatible with Final Cut Pro 7. New features for this release include the ability to save a preset and a way to add audio tracks via the Player. This .zip archive includes the software application and user manual.

As of the 5.5.2 release, installers have been separated for drivers and plug-Ins. This installer contains only Machina and its components. It does not contain KONA or Io Express drivers or application plug-ins. If you download this installer, please download and install the corresponding AJA KONA or Io Express Drivers. The installer is called AJA Retail Drivers 5.5.2. For further information on installation, please see the PDF manual included in this installer (see release notes).

As of the 5.5.2 release, installers have been separated for Drivers and Plug-Ins. This installer contains only the AJA Plug-ins for Eyeon Fusion. It does not contain KONA or Io Express drivers. If you download this installer, please download and install the corresponding drivers. The installer is called AJA Retail Drivers 5.5.2. For further information on installation, please see the PDF manual included in this installer (see release notes).

As of the 5.5.2 release, installers have been separated for Drivers and Plug-Ins. This installer contains only the AJA Plug-ins for Adobe Premiere Pro, After Effects, and Photoshop CS5.5. It does not contain KONA or Io Express drivers. If you download this installer, please download and install the corresponding 5.5.2 drivers. The installer is called AJA Retail Drivers 5.5.2. For further information on installation, please see the PDF manual included in this installer (see release notes).

In this 5.5.2 release, installers have been separated for drivers and plug-Ins. This driver installer contains only the KONA and Io Express hardware drivers, along with AJA codecs. It does not contain Machina or application plug-ins. If you download this driver, please download and install the corresponding Plug-ins as desired (found below on this webpage). For further information on installation, please see the PDF manual included in this installer.

New features include support for KONA LHe Plus, addition of an "Aggressive Cache" mode to Premiere Pro, and a "Quality" setting to Premiere Pro Player settings, in addition to other improvements and fixes (see release notes).

This release adds support for OSX Lion and for the new KONA LHe Plus, in addition to other improvements and fixes. Please read the release notes for further information. These plug-ins require AJA driver release v9.1 or later.

This release improves RGB <>YUV and RGB full range <>RGB SMPTE range conversion, in addition to other fixes and improvements. Please read the included release notes for complete details.

AJA Driver Compatibility as of KONA Version 9.1 is as follows:
FCP 7 - 6.0.x KONA Driver version 9.1 (Lion and Snow Leopard OS compatible)

Note: this driver version is not designed to support Final Cut Pro X.

This release adds support for OS X Lion. Please read the included release notes for complete details. This release includes Io Express support for Avid Media Composer version 5.5.3 and Lion 32-bit (not 64-bit); please see Avid Media Composer documentation for information on Media Composer system requirements. Note: this driver version is not designed to support Final Cut Pro X.

AJA Driver Compatibility as of Io Express Version 9.0.5 is as follows:
FCP 7 - 6.0.x KONA Driver version 9.0.5 (Lion, Snow Leopard and Leopard OS compatible)
FCP 7 - 6.0.x KONA Driver version 6.5 (Leopard OS compatible version)
FCP 6.0.x - KONA Driver version 6.0.3 (Leopard and Tiger OS compatible version)

This release resolves a problem that could occur with OS X 10.6.8, in addition to other improvements. Please read the included release notes for complete details.

AJA Driver Compatibility as of Io Express Version 9.0.3 is as follows:
FCP 7 - 6.0.x KONA Driver version 9.0.3 (Snow Leopard and Leopard OS compatible)
FCP 7 - 6.0.x KONA Driver version 6.5 (Leopard OS compatible version)
FCP 6.0.x - KONA Driver version 6.0.3 (Leopard and Tiger OS compatible version)

This release updates Io Express software with support for Adobe Premiere Pro CS5.5, Adobe After Effects CS 5.5, and Adobe Photoshop 5.1. AJA's new Io Express plug-ins for Adobe Premiere Pro CS 5.5 provide a 2x increase in real-time effects and video stream performance, taking full advantage of Adobe's powerful Mercury Engine architecture. Please read the included release notes for additional information.

This release is recommended for use with Final Cut Pro X and is also backward compatible with Final Cut Pro 7. New features for this release include batch capture and more advanced clip naming. This .zip archive includes the software application and user manual.

The OSX application allows users to capture, playback and record video/audio to any deck that can be interfaced. The software provides RS-422 deck control via a user-supplied cable connecting the KONA or Io and VTR. New features for this release include "Grab"scripting command, closed captioning support, and other features and improvements. This .zip archive includes the software application, release notes, and user manual.

A Windows utility for measuring system performance with AJA KONA Video Capture cards. The application includes disk drive speed tests and video data copy (DMA) speeds. The disk speed tests differ from standard disk I/O performance applications in that they specifically test the system under conditions typically encountered with video capture, playback and editing. Note: most of the disk performance tests are generic and don't require an AJA KONA Video Capture card. The DMA performance tests do require a KONA card and AJA KONA Driver software to operate.

This application calculates data rates and storage requirements for a given video size, format, and frame rate. It's great for KONA users as a resource for configuring systems and determining storage requirements.

This software updates AJA Windows software for Io Express. This release includes Io Express support for Avid Media Composer version 5.5. Please see Avid Media Composer documentation for information on Media Composer system requirements. Please read the included release notes for additional information.

This software updates AJA Mac software for Io Express. This release includes Io Express support for Avid Media Composer version 5.5. Please see Avid Media Composer documentation for information on Media Composer system requirements. Please read the included release notes for complete details.

AJA Driver Compatibility as of Version 8.1.2 is as follows:
FCP 7 - 6.0.x KONA Driver version 8.1.2 (Snow Leopard and Leopard OS compatible)
FCP 7 - 6.0.x KONA Driver version 6.5 (Leopard OS compatible version)
FCP 6.0.x - KONA Driver version 6.0.3 (Leopard and Tiger OS compatible version)

This release fixes an issue with on-board memory access, improving overall operation. Please read the included release notes for complete details.

AJA Driver Compatibility as of Version 8.1.1 is as follows:
FCP 7 - 6.0.x KONA Driver version 8.1.1 (Snow Leopard and Leopard OS compatible)
FCP 7 - 6.0.x KONA Driver version 6.5 (Leopard OS compatible version)
FCP 6.0.x - KONA Driver version 6.0.3 (Leopard and Tiger OS compatible version)

This release provides better RT performance, improved sleep, and other improvements. For more details, please read the release notes before installing software on your Io Express system.

AJA Driver Compatibility as of KONA/Io Express Version 8.0 is as follows:
FCP 7 - 6.0.x KONA Driver version 8.0 (Snow Leopard and Leopard OS compatible)
FCP 7 - 6.0.x KONA Driver version 6.5 (Leopard OS compatible version)
FCP 6.0.x - KONA Driver version 6.0.3 (Leopard and Tiger OS compatible version)

This software updates AJA Windows software for Io Express and KONA. Support has been added in this release for Adobe Premiere Pro, After Effects, and Photoshop CS5 (AJA plug-ins are now all 64 bit). Also added were support for Premiere Pro CS5's Mercury Playback Engine, CineForm stereoscopic playback, and Real-Time Apple ProRes playback support for AJA Premiere Pro sequences. Please read the included release notes for additional information.

This release is required for use with KONA and Io Express drivers version 7.5.1. This release provides CS4 AJA Mac Plug-Ins for Adobe, which include application plug-ins for Adobe Premiere Pro, After Effects, and Photoshop (release notes and user manual included in the download).

This release of Io Express software for Mac corrects an issue specific to HDMI input where DVCPRO HD capture did not function as expected, plus adds other improvements. Please read the included release notes for additional details.

This release of Io Express software for Mac adds time lapse support, IMX30/IMX40 codec support, AJA TV support playback in the background, plus other features and improvements. Please read the included release notes for additional details.

This release of Io Express software for Mac adds support for 10-bit hardware downconvert, plus improves existing features. Please read the included release notes for additional details. Click here to download the updated Io Express manual.

This is the initial release of Io Express software for Mac, complete with release notes, manual and software installer.

If you do not have a KONA card in your Macintosh, but need to access AJA QuickTime media files, you can use this AJA QuickTime codec to work with the files.

AJA KONA System Test (included as part of the driver download)
A Macintosh utility for measuring system performance with AJA KONA Video Capture cards. The application includes disk drive speed tests and Macintosh video data copy (DMA) speeds. The disk speed tests differ from standard disk I/O performance applications in that they specifically test the system under conditions typically encountered with video capture, playback and editing. Note: most of the disk performance tests are generic and don't require an AJA KONA Video Capture card. The DMA performance tests do require a KONA card and AJA KONA Driver software to operate. The DMA tests are not compatible with AJA Io products.

AJA Data Rate Calculator Application Version (included as part of the driver download)
This OS X software application calculates data rates and storage requirements for a given video size, format, and frame rate. It's great for both KONA and Io users as a resource for configuring systems and determining storage requirements.

AJA TV (included as part of the driver download)
An application for playing KONA QuickTime movies directly to the KONA VideoOutput. It's a quickie way to put clips "on-air" without having to launch Final Cut Pro, make a sequence, etc.

AJA KONA QTToDPXTranslator (included as part of the driver download)
takes a 10-bit RGB QuickTime movie (e.g. one that was captured via KONA 3 DualLink) and turns it into a series of DPX files (the DPX file format is a common interchange format for high-end film and graphics workstations).

AJA KONA DPXToQTTranslator (included as part of the driver download)
does the opposite of the above: it turns a folder full of DPX files into a KONA 10-bit RGB QuickTime movie.

AJA Desktop Software v18 macOS Installation Guide for download. You can also watch this short video.

Note: Corvid products are designed for Developers, so some Desktop Software features may not be available. Please contact AJA Technical Support for more information.

AJA Io Express Manual v15.5

AJA Telestream Apps Quick Start Guide v16.2:

The AJA Wirecast plug-in supports Wirecast 12x, 11.x, 10.x, 9.x, 8.x, 7.x, 6.x from Telestream.

Telestream Wirecast is supported through the AJA Desktop Software for the following AJA devices:

• KONA 5, KONA 4, KONA HDMI, KONA IP, KONA 1, KONA 3G, KONA LHi, KONA LHe Plus

• CORVID HB-R

• Io 4K Plus, Io 4K, Io IP, Io XT, Io Express

• T-TAP Pro

• T-TAP

• Telestream Wirecast is also supported through the AJA Desktop Software for the following Avid devices:

• Avid Artist | DNxIV

• Avid Artist | DNxIP

Please download the PDF for information on AJA and QuickTime 7 for Windows as of May 2016.

Important macOS Mojave installation information

• With the introduction of macOS Mojave (v10.14), Apple now requests that third party kernel extensions be “notarized” by Apple. AJA’s device driver kernel extension has been notarized starting with AJA Software version 15.2. Apple has indicated that for security purposes, future macOS versions may prevent the loading of unnotarized device drivers, in which case, AJA software prior to v15.2 will result in AJA devices failing to operate (Unsupported AJA Device)

Important macOS High Sierra installation information

• With the introduction of macOS High Sierra (v10.13), Apple now requires that third party application developers be identified during kernel extension installations. Failure to do so will make AJA devices fail to operate (Unsupported AJA Device).

• Depending on your macOS version and AJA Desktop Software installation history, the following installation outcomes are possible:

◦ macOS Sierra and Earlier Supported Versions

- No problems exist for AJA software installation or updates with these earlier versions of macOS.

◦ Earlier macOS to High Sierra Update

- No problems should occur if the AJA Desktop Software package is already installed on macOS Sierra (or earlier) and then update your Mac to High Sierra. The identification of AJA as a trusted developer is “grandfathered in” to High Sierra.

◦ macOS High Sierra First AJA Desktop Software Install

- No problems should occur if your Mac is running High Sierra macOS, you install AJA Desktop Software for the first time, and you follow the instructions shown during installation (Figure 1).

- Do NOT click OK (Figure 1). 

Figure 1 — First-time installation on macOS High Sierra

Instead, click Open Security Preferences (or go to System Preferences>Security and Privacy) and then click Allow for AJA Video Systems (Figure 2).

Figure 2 — click Allow for AJA Video Systems 

NOTE: If after successful installation, you remove AJA applications from your computer using the AJA Uninstaller developer identification is retained by macOS High Sierra. Re-installation should proceed without any problems.

• Recovery from Installation Approval Failure:

◦ If you clicked OK during installation and skipped the developer approval step, the AJA Desktop Software installation will complete, but macOS’ GateKeeper security will prevent AJA’s device driver from loading, and AJA devices will not not operate (Unsupported AJA Device).

◦ Apple has allowed a time window, within which you can belatedly approve a developer after installation. If you go to System Preferences>Security and Privacy, within 30 minutes of installation, the developer message and Allow button will be available for use. After 30 minutes, however, the message and button are removed from the window. Recovery from this involves uninstalling all AJA files (some manually), reinstalling the AJA Desktop Software package, and clicking on Allow for AJA Video Systems developer. 

• Recovery from Installation Approval Failure (2nd Level if necessary)

1. Run the AJA Uninstaller, located in the AJA Utilities folder in the Mac Applications folder.

2. Access the Users Library, which is hidden. To access the library:

3. Go to the Finder.

- In the Finder Menu Bar and click on Go.

- Hold down the Option key. The Library folder appears as long as the Option key is held down.

- Go to Library>Preferences and delete all com.aja.*.* files. There may be one file or several files.

4. Remove AJA Control Panel from the Dock, if applicable.

5. Restart the Mac.

6. Install the AJA Desktop Software package.

7. During installation click on Open Security Preferences (or go to System Preferences,>Security and Privacy).

8. Under the General tab click on the Allow button for AJA Video Systems. The button is only available for 30 minutes