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  • 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 Vision range of capture cards
  • Driver support included within the EMS unified Windows driver
  • Driver support included with the EMS unified Linux driver (NOTE: Check Linux specific features with Sales)



A capture card with two channels of HD DVI video and an extra composite video input all operating simultaneously and independently; with full analogue and digital audio support.

The XtremeAV-HD2+ has three independent video capture inputs – two supporting High Definition capture and a third supporting Standard Definition composite video. This capture card also adds multiple channels of audio capture, which can be synchronised in software using timestamping with all video capture channels.

Both DVI High Definition inputs support HDMI, DVI, RGB and analogue Component (YPbPr) input via a DVI-I connector, at resolutions up to 4096×4096 pixels and supports 1080p (1920×1080) at 60 frames per second.

The XtremeAV-HD2+ captures all three video channels simultaneously and triple buffers them into onboard storage for tear free video, alongside an audio stream that can be selected from one of the HDMI or one of the analogue audio ports. This data can then be processed and copied using DMA transfers to the host system for display, storage or streaming.


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

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

For streaming applications, the XtremeAV-HD2+ 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 XtremeAV-HD2+ due to it built-in WDM support.


Input and output connection via the Audio Breakout cable which is supplied with the optional AM2 audio module attached to a 15 pin high density D-type connector on the Audio Module. The physical connections comprise of:

• Left and right balanced audio input on female XLR jacks
• Left and right unbalanced line inputs on female RCA connectors
• Left and right unbalanced line outputs on female RCA connectors for direct pass through of selected analog input

Flexible input/output mixing capabilities. 

Supports audio capture to the PCI Express bus at popular sample rates from 44.1 to 96 k samples/s at 16 bits/sample.
Playback and mixing of HDMI embedded audio.


XtremeAV-HD2+ Video Capture Card:

Board Format PCI Express x4 half size plug-in card, 110mm x 170mm
Connectors (main board) 2 x DVI-I, 1 x RCA (female)
HDMI Capture Supports 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 Capture Supports DVI 1.0 RGB 24 bit capture to 165 MHz
Incorporates TMDS equaliser to support up to 20m cables
VGA/ YPbPr Capture Triple ADCs sampling up to 170Msps. Full 4:4:4 sampling, 8bits per colour
5-wire, 4-wire or sync-on-green signal format
Composite Video Capture CCIR601 sampling, PAL, NTSC, SECAM formats automatically detected
Audio Capture Stereo Line-In/ Stereo balanced inputs with programmable gain (+/-12dB)
16 bit sampling at 44.1/ 48/ 96 kHz
Analogue stereo line-out for direct passthrough of selected input at up to 64kHz sampling, sourced from analogue input or HDMI channel
Video Capture Memory 256MB 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 Processing Polyphase FIR scaling engine (7×5) 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
Video Capture Memory 256MB 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)
DMA Engine Direct 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 Support Up to Windows ® 10 and Linux support (NOTE: Check Linux specific features with Sales)
Power Requirements Max current at 12V – 1A
Max current at 3.3V – 1A
Thermal dissipation – 15.5 W
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


Order Code: XtremeAV-HD2+
HDMI/ DVI/ RGB/ YPbPr/ SD/ Composite video capture card
* * Adapters for other types of video connectors such as DVI to HDMI, DVI to VGA or DVI to Component are not included with the XtremeAV-HD2+ but are available from EMS, contact our sales team for details.

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



XtremeRGB / AV / DV Video Capture Cards      
DatasheetUser Guide
Software/Drivers - WindowsVersion: 7.19.0Date: 19 March 2019DOWNLOAD
Linux Version: n/aDOWNLOAD
XtremeDV-UHD2 - Rev62 22nd November 2018
XtremeDV-HD4+ - Rev62 22nd November 2018
XtremeDV-DP2 - Rev58.1 20th February 2018
XtremeDV-SDI4, XtremeHD2-SQX, XtremeAV-HD4, XtremeAV-HD1+,
XtremeAV-HD2+, XtremeRGBSDI2, XtremeRGB-Ex1+, XtremeRGB-Ex2+,
XtremeRGB-Ex4+ and XtremeRGB-Ex8 - Rev58.0 8th May 2017

The drivers included in this package support 32 and 64 bit versions of the following operating systems:

Windows® 10
Windows® 8.1
Windows® 8
Windows® 7
Windows® Server 2012
Windows® Server 2008 R2