Corvid 44 12G

Corvid 44 12G

Compact 12G-SDI Power

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$4069 US MSRP*

* Pricing is for US only. International pricing will vary.


Take command of the most challenging projects using the immense power of Corvid 44 12G, AJA’s blazingly fast, compact 8-lane PCIe 3.0 I/O card with four bidirectional 12G-SDI HD-BNC connections, designed for today’s most demanding video and audio workflows. Corvid 44 12G is available in several configurations, including full-height or low-profile, with passive or active cooling.

Whether you are working with HFR 8K/4K/UltraHD, 2K/HD, SD, Deep Color and/or HDR, experience the quality and peace of mind that Corvid 44 12G brings to your projects. Supporting 10-bit 4:2:2 and 4:4:4, at up to 12-bit color spaces, Corvid 44 12G offers ingest and output over 12G-SDI, which is also backwards compatible with 6G-SDI, 3G-SDI, and 1.5G-SDI. The bidirectional 12G-SDI ports provide immense flexibility for capture and simultaneous pass-through for a range of solutions.



  • 8K/UltraHD2/4K/UltraHD/2K/HD/SD, including multi-channel 4K up to 50/60p  
  • 4x bidirectional 12G-SDI HD-BNC connections with 16-channel embedded audio per connection for a total of 64-channel/32-channel support for 8K workflows
  • RGB 4:4:4 12-bit (4K/UltraHD), and YCbCr 4:2:2 10-bit HFR support 
  • Up to 12-bit LUT support (.cube)
  • Dynamic FPGA Firmware Reconfiguration
  • 4K Closed Caption Support 
  • VPID signaling for SDR/HDR Transfer Characteristics, Colorimetry and Luminance via SDI
  • PQ, HLG and Dolby Vision Support 
  • HDR Metadata Capture and Auto Playback Detection
  • Reference/LTC Input on card (Analog black burst or Tri-level)
  • Full height and half height models
  • RS-422 on internal header or bracket with full height model
  • LTC input on internal header
  • Active or passive heatsink
  • Includes support for the Apple M1 chip

12G-SDI, Multi-Format PCIe I/O Card

Corvid 44 12G boasts four bidirectional 12G-SDI spigots with a Reference Input. 8K Input or Output is possible using quad 12G-SDI cables and 4K/UltraHD I/O can be achieved with either a single 12G-SDI or 6G-SDI cable, or quad 3G-SDI cables. 2K/HD I/O can be achieved with a single SDI cable or dual link SDI, while allowing capture and monitoring via SDI to take place simultaneously.

The Corvid 44 12G family also includes models for active vs. passive cooling, RS422 on PCIe bracket vs. card header, and HD-BNC vs. full-size BNC connectors.

Flexible Frame Rate Support

Corvid 44 12G supports 8K (8192 x 4320) and UltraHD2 (7680 x 4320) High Frame Rate (HFR) workflows up to 50/60p for the most demanding applications. Film rates of 23.98, 24, 47.95 and 48p are also supported across 8K, 4K, and 2K.

High frame rates are not limited to 8K and UltraHD2 with Corvid 44 12G, multiple 4K, UltraHD, 1080p and 720p HD inputs and outputs are also supported at frame rates up to 50/60p, making Corvid 12G extremely flexible for your current and future needs

Hardware Keying

The built-in hardware downstream keyer allows graphics and images to be easily overlaid on the input video in real time. 

AJA Control Room Metadata Toolset

Metadata is the key for managing advanced workflows. AJA is bringing to market an entirely new way to harvest metadata in the SDI signal stream and export the metadata to a sidecar file.

This new feature, called AJA Control Room Metadata Toolset*, is being introduced in Desktop Software v17.1 and adds the following functionality:

  • Supports capture of any metadata type, including SCTE-104 and Dolby Vision metadata, that is part of the SDI Ancillary metadata payload.

  • Using an AJA KONA capture card that supports SDI input and the included AJA Control Room software (such as KONA 5 or KONA X), the card captures the metadata, which is then preserved in a metadata sidecar file.

  • AJA Control Room can playback the metadata to provide quality monitoring.

  • AJA Control Room can export the metadata synchronized with the media on a per-frame basis.

*macOS and Windows only

Download Workflow

AR support with Unreal Engine 

Capture real time footage with Corvid 44-12G over SDI from high quality cameras, meld your footage with your virtual environment created by the Unreal Engine and send it back out in real time to air  - a growing need for broadcasters, augmented reality (AR) needs and more.

Digital film makers also benefit with these new workflows: On set, enhance your live action VFX work with the ability to see a full composite live during the course of the shoot. This results in fewer reshoots, the ability for actors to understand the virtual environment they are working within for stronger performances and ultimately leads to a range of efficiencies and cost savings with the added benefit of a smoother transition into post production.

Quick Start Guide on using Corvid 44 with Unreal Engine

LTC and Reference Input

Corvid 44 12G provides one external, switchable LTC/Reference Input connection on the back of the card. A second LTC input is available on an internal header for providing additional reference to Corvid 44 12G.


A built-in RS-422 connection is available either as an external connection on the full-sized Corvid 44 12G or as an internal connection on the low profile Corvid 44 12G. RS-422 allows control of external devices for frame accurate ingest and layoffs.

Industry Leading Support

AJA’s technical support is recognized as among the best in the industry and is available to all AJA customers. If you need assistance with any aspect of your Corvid installation, configuration, operation or encounter any technical issue,  AJA Support will work with you to get up and running.

Corvid products are covered by a generous three year warranty.

Tech Specs

Video Formats

  • (8K) 8192 x 4320p 23.98, 24, 25, 29.97, 30, 47.95, 48, 50, 59.94, 60
  • (UltraHD2) 7680 x 4320p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
  • (4K) 4096 x 2160p 23.98, 24, 25, 29.97, 30, 47.95, 48, 50, 59.94, 60
  • (UltraHD) 3840 x 2160p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
  • (2K) 2048 x 1080p 23.98, 24, 25, 29.97, 30, 47.95, 48, 50, 59.94, 60
  • (2K) 2048 x 1080PsF 23.98, 24, 25
  • (HD) 1080p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
  • (HD) 1080PsF 23.98, 24, 25, 29.97, 30
  • (HD) 1080i 50, 59.94, 60
  • (HD) 720p 50, 59.94, 60
  • (SD) 625i 50
  • (SD) 525i 59.94


Note: High Frame Rate and 8K/UltraHD2 capabilities are dependent on host system attributes. Not all systems and configurations will support all frame rates and raster sizes.

Video Inputs Digital

  • 12G-SDI, SMPTE-2082, 12-bit*, 10-bit
  • 6G-SDI, SMPTE-2081, 10-bit
  • 3G-SDI, SMPTE 425
    • RGB 4:4:4 12-bit*, YCbCr 4:2:2 10-bit
  • 1.5G-SDI, SMPTE 292M
    • Single Link HD-SDI YCbCr 4:2:2 10-bit
    • Dual Link RGB 4:4:4 12-bit*, Dual link YCbCr 4:2:2 10-bit
  • 270 Mbps SDI, SMPTE 259M-C
    • YCbCr 4:2:2 10-bit, 8-bit 


*Bit depth support is application dependent. Check with your software manufacturer for compatibility.
Note: KONA 5 SDI connectors are HD BNC

Video Outputs Digital

  • 12G-SDI*, SMPTE-2082, 12-bit*, 10-bit 
  • 6G-SDI*, SMPTE-2081, 10-bit
  • 3G-SDI, SMPTE 425 
    • RGB 4:4:4 12-bit*, YCbCr 4:2:2 10-bit 
  • 1.5G-SDI, SMPTE 292M 
    • Single Link HD-SDI YCbCr 4:2:2 10-bit 
    • Dual Link RGB 4:4:4 12-bit*, Dual Link YCbCr 4:2:2 10-bit 
  • 270 Mbps SDI, SMPTE 259M-C 
    • YCbCr 4:2:2 10-bit, 8-bit 


*Bit depth support is application dependent. Check with your software manufacturer for compatibility.
Note: Corvid 44 12G SDI connectors are HD BNC


  • SDI connections are bidirectional
    • 2K/HD, capture and monitoring is simultaneous
    • 4K/UltraHD with 12G-SDI, capture and monitoring is simultaneous.  
    • 4K/UltraHD with 3G-SDI, all four connections must be used for either Input or Output. 
    • 8K/UltraHD2 with 12G-SDI, connections must be used for either Input or Output. 


Note: When connections are configured for 12G-SDI or 6G-SDI, only UltraHD/4K/UltraHD2/8K formats are supported.

Audio Inputs Digital

  • 16-channel, 24 and 16-bit SDI embedded audio, 48 kHz sample rate, synchronous

Audio Outputs Digital

  • 16-channel, 24-bit SDI embedded audio, 48 kHz sample rate, synchronous

Downstream Keyer

  • Supports graphics with alpha channel over video, matte or framebuffer, or framebuffer content over incoming video or matte up to UltraHD/4K


  • Analog Color Black (1V) or Composite Sync (2 or 4V) or HD Tri-Level Sync (1V) via 1x HD-BNC on PCIe bracket
  • Reference input is terminated into 75 ohms when Genlock is set to Ref In


  • LTC timecode input via 2-pin header on PCIe card [both short (low profile) and tall (full height) models]
  • LTC timecode input via HD-BNC Ref In connector (switchable) on PCIe bracket [tall (full height) models only]

Electrical Interface

  • 8-lane PCIe 3.0

Machine Controls

  • RS-422, Sony 9-pin protocol via header on PCIe card [both short (low profile) and tall (full height) models]
  • RS-422, Sony 9-pin protocol via port on PCIe bracket connected to header via DB9 cable [tall (full height) models only]
  • 9-pin D-connector pinout is as follows:










No Connection












  • <50dBA (A-weighted at 1m in free air) [models with active cooling (fan)]
  • Ultra quiet (virtually silent) [models with passive* cooling (no fan)]
  • Passive cooling requires in-host/chassis air-flow minimum of 150 LFM (linear feet per minute) at 30 C

Size (w x d x h)

  • 0.75" x 7.0" x 3.15" (19 x 178 x 80 mm) [short (low profile) models]
  • 0.75" x 7.0" x 4.75" (19 x 178 x 121 mm) [tall (full height) models]


  • PCIe Card:  0.6 lbs (0.3 kg)
  • Cables (all combined): 0.6 lbs (0.3 kg)


  • 25W typical, 32W maximum
  • PC Internal ATX Power Connector (Molex p/n 45559-0002)


Note: Unlike other Corvid cards, Corvid 44 12G can use either PCIe power from a 6 pin ATX connector, or via the PCIe slot.


  • Safe Operating Temperature: 0 to 40 C (32 to 104 F)
  • Safe Storage Temperature (Power OFF): -40 to 60 C (-40 to 140 F)
  • Operating Relative Humidity: 10-90% noncondensing
  • Operating Altitude: <3,000 meters (<10,000 feet)