12G-SDI to/from SDI Muxer/DeMuxer

12GM is a compact SDI transport converter that enables 12G-SDI to quad link 3G-SDI and quad link 3G-SDI to 12G-SDI conversion. The muxer/demuxer supports 4K, UltraHD, 2K, HD and SD workflows and conversions from quad link SDI signals to single link SDI signals, and vice versa at 12G, 6G, 3G and 1.5G bit rates. Both Square Division (Quadrant) and Two Sample Interleave (2SI) input and output mappings are supported.

$895 US MSRP*

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

12G-SDI from Camera to Fiber, Edit and More

Explore how AJA’s latest 12G-SDI solutions can simplify production and post workflows, providing ample bandwidth to handle high resolution, high frame rate and deep color content over a single cable. 

Learn more about our FiDO 12G-SDI/optical fiber Mini-Converters, 12GDA distribution amplifier, 12GM muxer/demuxer, FS-HDR converter/frame synchronizer and Io 4K Plus Thunderbolt™ 3-equipped audio and video I/O device with 12G-SDI support.


  • Compact 12G-SDI to/from quad link 3G-SDI conversion and 6G-SDI to/from quad-link 1.5G-SDI 
  • SMPTE 2082 inputs and outputs configurable to SMPTE 425 inputs and outputs
  • Two Sample Interleave (2SI) to Square Division (Quadrant) pixel mapping
  • Square Division (Quadrant) to Two Sample Interleave (2SI) pixel mapping
  • Input signal diagnostics
  • Input timing analyzer for quad-link signals
  • Configurable as a 1x4 distribution amplifier for 12G, 6G, 3G and 1.5G bit rates
  • Automatic equalizing and reclocking with jitter attenuation
  • DWP-U-R1 power supply included
  • Five Year warranty

Universal Power Supply

All AJA Mini-Converters ship with a universal power supply that includes international plug connections for use around the world.

Compact and Portable

AJA Mini-Converters are small enough to fit behind a monitor, in the back of a rack or directly on a camera rig. A locking power connector can't accidentally pull loose and an optional P-TAP power cable allows for battery power in remote locations.

AJA Mini-Matrix

Information on the complete line of AJA Mini-Converters is now available as a mobile app on iOS. The Mini-Converter product line is extensive and this app helps you find the right converter for any situation, wherever you are.

Individual products have links back to the main AJA website for more details and you can email product information directly from the app. The free AJA Mini-Matrix app for iPad® and iPhone® is available now in the Apple iTunes® Store.


Download from the App Store

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 Mini-Converter installation, configuration, operation or encounter any technical issue,  AJA Support will work with you to get up and running.

Mini-Converter products are covered by a generous five year international warranty.

Tech Specs

Video Formats

  • (4K) 4096 x 2160p
  • (UltraHD) 3840 x 2160
  • (2K) 2048 x 1080p
  • (HD) 1920 x 1080p
  • (HD) 1920 x 1080i
  • (HD) 1280 x 720p
  • (SD) 720 x 576i
  • (SD) 720 x 480i

Video Input/Output Digital

  • 4x 12G-SDI BNC, SMPTE 259/292/424/2081/2082
  • YCbCr 4:2:2  
  • 8 or 10-bit
  • Two Sample Interleave (2SI) or Square Division (Quadrant) input and output mapping
  • 1x 12 Gb SDI
  • 4x 3 Gb SDI (Level A)
    • (4K) 4096 x 2160p 50, 59.94, 60
    • (UltraHD) 3840 x 2160p 50, 59.94, 60
  • 1x 6 Gb SDI
  • 4x 1.5 Gb SDI
    • (4K) 4096 x 2160p 23.98, 24, 25, 29.97, 30
    • (UltraHD) 3840 x 2160p 23.98, 24, 25, 29.97, 30
  • 1x 3 Gb SDI (Level A)
    • (2K) 2048 x 1080p 50, 59.94, 60
    • (HD) 1920 x 1080p 50, 59.94, 60
  • 1x 1.5 Gb SDI 
    • (2K) 2048 x 1080p 23.98, 24, 25, 29.97, 30
    • (2K) 2048 x 1080PsF 23.98, 24, 25, 29.97, 30
    • (HD) 1920 x 1080p 23.98, 24, 25, 29.97, 30
    • (HD) 1920 x 1080PsF 23.98, 24, 25, 29.97, 30
    • (HD) 1920 x 1080i 50, 59.94, 60
    • (HD) 1280 x 720p 50, 59.94, 60
  • 1x 270 Mb SDI
    • (SD) 625i 50
    • (SD) 525i 59.94

Support Conversions and Functions

  • Quad 3G-SDI to Single 12G-SDI 
  • Single 12G-SDI to Quad 3G-SDI 
  • Quad 1.5G-SDI to Single 6G-SDI 
  • Single 6G-SDI to Quad 1.5G-SDI 
  • Two Sample Interleave (2SI) to Square Division (Quadrant) pixel mapping
  • Square Division (Quadrant) to Two Sample Interleave (2SI) pixel mapping
  • Pass through of Single Link 3G, 1.5G and 270M SDI video
  • Distribution Amplifier support (1x4)
  • Input signal diagnostics
  • Input timing analyzer for quad link signals

Cable Equalization

(Belden 1694A coax)

  • 12 Gbps, 70m
  • 6 Gbps, 100m
  • 3 Gbps, 140m
  • 1.5 Gbps, 200m
  • 270 Mbps, 300m

Audio Input / Output Digital

  • Passes SDI embedded audio, 24-bit, up to 16-Channels

User Interface

  • USB port used with supplied cable and Mini-Config software application to configure device and access diagnostics via macOS or Windows.

Size (w x d x h)

  • 5.76" x 4.02" x 0.90" (146.31 × 102.11 × 22.86 mm)


• 0.6 lb (0.3 kg)


  • 5-20VDC regulated, 12 watts, power supply required, included with purchase
  • AC Adapter: 100-240VAC, 50/60 Hz, universal input


  • 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)


*12GM uses approximately 12 watts of power and convection cooling. It will be very warm to the touch, which is normal. When installing the unit, mount in a location where it has access to air for proper cooling. Do not stack the 12GM with other Mini-Converters.