VisionIO-SDI4 - Header
VSN9 Series


  1. Four High Definition SDI inputs
  2. Four High Definition SDI outputs
  3. Real time hardware overlay
  4. Eight lane PCI Express 3.0 capture card
  5. Capture 4x 3G/HD/SD-SDI signals with audio (which can be combined to create one 4k/UHD capture and display)
  6. All the features of Datapath’s latest VisionSC range of capture cards

Instant Capture and Display

Many video applications demand the highest level of accuracy. Video needs to not only be captured for storage or processing, but also needs to be seen in real time by professionals in cutting edge events. Datapath’s VisionIO range of capture cards offer the ability to capture high quality video and loop inputs directly to outputs, creating latency at just a few pixels. Signals are delivered to the primary display, even if the host PC stops functioning.

Zero Latency Overlay

The VisionIO series also offers an on-board alpha blending capability, allowing a secondary source of frames to be overlaid on to the outgoing display in real time. The optional use of an overlay watchdog ensures that the application supplying the overlay is in constant control. If any problems are detected the card will ensure integrity of the primary signal by preventing the overlay from obscuring the live signal.

Video Streaming

DirectShow drivers for WDM Streaming supports the following applications, to encode, record and stream video over networks or the Internet:

  • Microsoft Media Encoder®
  • VLC
  • VirtualDub
  • Any other DirectShow encoding software

For streaming applications, the VisionSC-SDI4 can be used with Windows Media Encoder to compress and stream captured video. To replay the video, use Windows® Media Player.

Any application compatible with Windows® DirectShow technology can use the VisionIO due to the built-in WDM support.

Model Options

Product Name/Order Code Description
VisionIO-SDI4 Four channel card with 4 SDI inputs/outputs + overlay

All products are shipped with the latest software available, unless stated otherwise. Special requirements may be organised by contacting our Sales team.

VisionIO-SDI4 Specification

Board Format PCle Gen3 x8 plug-in card
Dimensions 110mmx177mm (incl heat sink)
Connectors 4x DIN 1.0/2.3 connectors for input
4x DIN 1.0/2.3 connectors for output
Max Capture Resolution 2.97 Gbps capture bandwidth per channel. Provides => 4x 1920x1080p @ 60Hz or 4096x2160p @ 60Hz Frame Buffer 768MB
Input Mode Detection Supports SMPTE - 352 Payload Identifiers
Sample Formats RGB: 4-4-4/YUV: 4:2:2, 4:4:4
SMPTE Standards ST-259, ST-272, ST-274, ST-291, ST-292, ST-293, ST-296, ST-299, ST-352, ST-424, ST-425, ST-2048
Update Rate User defined. Captured frame rate will match the source providing max data rate is not exceeded.
Multi-buffered to eliminate tearing artefacts.
Video Modes 480i, 576i 720p, 1080i, 1080p,1080psF, 2048x1080p, 2048x1080psF, 3840x2160p, 4096x2160p
Supported Frame Rates 23.98Hz, 24Hz, 25Hz, 29.97Hz, 30Hz, 50Hz, 59.94Hz & 60Hz
Operating System Support Windows OS® up to Win 10
Power Max current at +3.3 - 0.45A
Max current at +12V - 0.85A
Max power ≈ 18W
Operating Temperature 0° to 35° C / 32° to 96° F
Storage Temperature -20° to 70° C (-4° to 158° F)
Relative Humidity 5% to 90% non-condensing
Warranty 3 Years


We are continuously developing the technology used within our product ranges delivering outstanding innovative solutions, therefore the specification may change from time to time.

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Datapath has a large network of distributors and resellers across the World.


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