AJA ROI-SDI 3G-SDI to HDMI/3G-SDI Scan Converter with ROI Scaling Mini-Converter


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Product Highlights

  • Aspect ratio conversion
  • Genlock input
  • 3G-SDI to HDMI and 3G-SDI  conversion
  • Region of Interest scaling
  • 3G-SDI loop throug
  • Audio disembedding


AJA’S ROI-SDI 3G-SDI to HDMI/3G-SDI Scan Converter allows high quality conversion and extraction of a Region of Interest (ROI) from a 3G-SDI input to 3G-SDI and HDMI mirrored outputs. The ROI-SDI offers incredible image scaling, extensive aspect ratio conversion and audio functionality.

Region of Interest

ROI-SDI Mini-Converter can be connected via USB to a computer running the free Mini-Config application lets you select a Region of Interest from the original signal and have the total control over how that region is scaled to the output resolution utilizing AJA’s high quality scaling algorithms for a higher picture quality.

Moreover, this feature allows you to rotate source signals, customize a portion of an image or reframe the source image to extend the creative options for what’s been captured in camera.


Control the aspect of the ratio conversion with on-screen controls in the Mini-Config software that show you exactly what your source and output will look like and what formats are coming in and going out. An easy menu controls let you choose the proper output for any situation.

In addition, the output will be mirrored to both the 3G-SDI and HDMI outputs for simultaneous delivery to multiple displays or continuing signal paths.


The ROI-SDI uses a direct 3G-SDI loop through, allowing it to be placed in-line so you still have a connection to an external monitor while extracting to both 3G-SDI and HDMI. The reference input ensures the 3G-SDI signal out of ROI is locked for use throughout a production or facility.


The ROI-SDI supports 8-Channel embedded audio from an 3G-SDI input. The audio source and routing can be selected manually in the Mini-Config software and is embedded in the 3G-SDI and HDMI outputs. It also features a stereo RCA output for a practical monitoring needs.


AJA ROI SDI Tech Specs

Video Outputs

  • 1x 3G-SDI BNC, loop through
  • 1x 3G-SDI BNC, SMPTE-259/292/424
  • 1x HDMI Type A, HDMI v1.
Video Formats
  • (HD) 1920 x 1080p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
  • (HD) 1920 x 1080i 50, 59.94
  • (SD) 1280 x 720p 50, 59.94, 60
  • (SD) 625i 50
  • (SD) 525i 49.94
Reference Input

Supported reference video inputs include:

  • 1080i tri-level sync 1080p tri-level sync
  • 720p tri-level sync
  • 625i Color Black
  • 525i Color Black
Video Input 1x 3G-SDI BNC, SMPTE-259/292/424
HDCP ROI does not encode the HDMI output with HDCP encryption
Audio Output Digital
  • SDI embedded audio, 24-bit, 8-Channel
  • HDMI embedded audio, 24-bit, 2-Channel or 8-Channel
Audio Output Analog 2x Analog RCA Jack, 2-Channel
User controls USB port used with supplied cable and Mini-Config software application to configure device via Mac or Windows
Dimension (w x d x h) 5.77" x 4.02" x 0.9" (146.56 x 102.11 x 22.86 mm)
Weight 0.6 lb (0.3 kg)
  • Uses AJA power supply model DWP-U-R1 (included with purchase)
  • 100-240V, 50/60 Hz universal input
  • 5-20V DC regulated, 7 watts max
  • 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)
In the box
  • AJA ROI-SDI 3G-SDI to HDMI/3G-SDI Scan Converter with ROI Scaling
  • Universal Power Supply
  • Limited 5-Year Warranty

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