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Three Channel Video Capture Card

  • Four lane PCIe lane bus, Net 1.6 GB/s total capture bandwidth
  • Triple channel PCI Express capture card
  • Direct DMA to graphics memory of third party graphics cards
  • All standard features of the Xtreme range of capture cards
  • Driver support included within the EMS unified Windows driver


Three Channel Video Capture Card

A capture card with three independent channels of video capture for 3G SDI, DVI and Composite video, with full analogue and digital support.

The XtremeAV-SDI is a four lane PCI Express card with three video capture inputs – two supporting HD capture and a third supporting SD composite video, these three independent video channels can be captured simultaneously. The XtremeAV-SDI also adds multiple channels of audio capture, which can be synchronised in software using timestamping with all video capture channels.

The half length full height card features a full mechanical 16 lane connector with notches which will enable it to fit four, eight and 16 lane motherboard connectors.

The XtremeAV-SDI also adds embedded audio capture from SDI signal, which can be synchronised with the respective video channel. This card provides balanced and unbalanced analogue capture, through an optional audio module (the EMS AM2)

This capture card provides a single flexible card solution for areas such as medical, lecture capture, web casting and video conferencing.

Video Streaming Support

Direct WDM streaming driver supports the following applications, to encode, record and stream video over networks or the internet:

  • Dataton WatchOut
  • Microsoft Expression Encoder
  • Microsoft Windows® Media Encoder
  • VideoLAN VLC
  • NorPix StreamPix
  • VitualDub
  • Adobe Flash Encoder
  • VidBlaster
  • AMCap and other DirectShow compatible software

For further details see the EMS DirectShow SDK documentation supplied as part of a typical installation.


A single XtremeAV device supports up to 16 independent scale factors, colour spaces and frame rate clients, which enables multiple streams to be sent to and from the card at the same time in different formats.

Supports timestamp for capture synchronisation across inputs, cards and systems.
For the use with edge blending, frame stitching, stereoscopic and many more applications using gen-locked sources.

Flexible and configurable preferred mode EDID Management
Allows programming of custom EDID parameters including ‘Preferred Mode’

Low input to output capture latency
DMA to third party graphics vendors back and front buffers via Direct3D
Compatibility with AMD DirectGMA
Compatibility with Nvidia GPUDirect

Software Interfaces

XtremeAV driver & command line interface
Supplied with a standard application for full control of any Vision capture card, this includes GUI’s for window properties, input settings, on screen display and EDID configuration.
The XtremeAV application also includes a comprehensive command line interface for all GUI controls.

SDK for advanced audio and video control
Sample applications including low latency DirectX rendering

DirectShow SDK
Sample applications including AV encoding
SDK diagnostic transform filters
Kernel Mode – WDM video capture filters (crossbar required)
User Mode – Additional support for PiP, IAMStream control and cropping


Board FormatPCI Express x4 half size plug-in card, 110mm x 170mm
Connectors (main board)DVI-I, RCA and 2 x BNC connector: Input (Green LED) and Loop through output (Blue LED)
HDMI CaptureSupports HDMI 1.3 to 225 MHz (inlcuding deep colour modes) HCDP is supported when used with Datapath graphics cards
HDMI audio can be selected as source for audio streaming
Incorporates TMDS equaliser to support up to 20m cables
DVI CaptureSupports DVI 1.0 RGB 24 bit capture to 165 MHz
Incorporates TMDS equaliser to support up to 20m cables
VGA/ YPbPr CaptureTriple ADCs sampling up to 170Msps. Full 4:4:4 sampling, 8bits per colour
5-wire, 4-wire or sync-on-green signal format
DVI-I Modes1920x1200/ 60 fps. 32 bit colour, up to 4096x4096 resolution
Composite Video CaptureCCIR601 sampling, PAL, NTSC, SECAM formats automatically detected
SDI CaptureSD-SDI (480i/ 576i), HD-SDI to 1080i, 3G-SDI up too 1080p and 2k Digital cinema modes
SDI audio can be selected as source for audio streaming
Analogue Audio CaptureBalanced and unbalanced analogue audio capture (through optional audio module)
Video Capture Memory256MB high bandwidth frame buffer supports triple buffering of HD and SD video
Local storage of complex scatter-gather tables for DMA engine (eliminates read overhead)
Video ProcessingPolyphase FIR scaling engine (7x5) for hardware downscaling and upscaling
Colour space conversion allows captured data to be transferred in any format:)
•RGB 16 bit (5-5-5, 5-6-5), 24 bit (8-8-8) or 32 (8-8-8 alpha)
•YUV 16 bit (4:2:2)
•Mono: 8 bit
DMA EngineDirect DMA to physical or virtual memory buffers with full scatter-gather support
DMA bandwidth: up to 800 MB/s
16 independent DMA streams: Any mix of HD and SD sources, colour space, cropping and scaling parameters
Operating System SupportUp to Windows ® 10 and Linux support (NOTE: Check Linux specific features with Sales)
Power RequirementsMax current at 12V - 1A
Max current at 3.3V - 1A
Thermal dissipation - 15.5 W
Operating Temperature0 to 35 °C/ 32 to 96 °F
Storage Temperature-20 to 70 °C/ -4 to 158 °F
Relative Humidity5% to 90% non-condensing
Warranty3 years



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