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  • HDMI, DVI, RGB, YPbPr, composite video and analogue audio capture
  • High quality up/down scaling (7×5 Polyphase Filter)
  • Flexible Audio Capture
  • Multiple channel audio and video capture
  • Small form factor low power consumption
  • On card processor for real time mode detection
  • Support for Windows and Linux (NOTE: Check Linux specific features with Sales)



Provides simultaneous SD and HD video capture through one channel of DVI-I or HDMI capture and one channel of composite video capture.

The XtremeAV-HD1+ has two independent video capture channels – one supporting High Definition capture and a second supporting Standard Definition composite video. The XtremeAV-HD1+ also adds analog audio capture, which can be synchronised in software using time stamping with all video capture channels. The High Definition channel supports HDMI, DVI, RGB and Analog Component  YPbPr) input via a DVI-I connector, at resolutions up to 4096 x 4096 pixels and supports 1080p (1920×1080) at 6o frames per second. 

The Standard Definition channel is input as composite video on a single RCA connector and can auto-detect between PAL, NTSC and SECAM formats. The XtremeAV-HD1+ captures both video channels simultaneously and triple buffers them into onboard storage, alongside an audio stream that can be selected from the HDMI or one of the analog audio ports. This data can then be processed and copied using DMA transfers to the host system for display, storage or streaming.


Dual Channel Video
• Channel 1: Digital or Analog (HD) Video
• Channel 2: Composite Video (SD) PAL, NTSC and SECAM
Flexible Audio Capture
• Balanced (XLR) and Unbalanced (RCA) from optional audio module (AM2)
• HDMI audio through High Definition Video Channel
EMS Unified Vision Driver
• Multiple cards per system, 16 streams per channel
• Fully integrated for use with EMS VigiControl Wall Control software for video wall applications


When the XtremeAV-HD1+ is used with a EMS graphics card, it is able to transfer the data directly to the graphics card thereby increasing performance and allowing both sources to be viewed at full frame rate. When the video data is displayed on a non-EMS graphics card, the XtremeAV-HD1+ may still be able to boost performance by using the graphics card’s DirectGMA interface to transfer directly to its off-screen memory. This is dependent upon the graphics card driver software capabilities. The XtremeAV-HD1+ is an ideal solution for applications that require both a real time camera feed, with synchronised audio, as well as high resolution image capture at full frame rates.


Timestamp support for streaming synchronisation
• Synchronisation of multiple inputs, cards and systems (1).
• For edge blending and other applications
Flexible and configurable EDID Management
• Allows programming of custom EDID parameters for Capture cards
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
User Mode filter for source selection
• Enables cropping support in DirectShow on all inputs
• Supports Start and Stop trigger interface on all Vision inputs


Input and output connection via the Audio Breakout cable (supplied with all Audio Modules) 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 passthrough 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 ksamples/s at 16 bits/sample.
Playback and mixing of HDMI embedded audio


XtremeAV-HD1+ 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 EMS 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

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