DarkCrystal HD Capture SDK Duo (C129)

The DarkCrystal HD Capture SDK Duo is a 1080p HD capture card that allows you to simultaneously capture video from two HD and SD sources. Intended for mission-critical applications and to save precious PCI-e slot availability. 

The exclusive hardware design of the AVerMedia DarkCrystal HD Capture Duo allows any video professional to monitor, archive, verify, master or broadcast HD video content with more flexibility and more possibilities. It is designed to fulfill any high-density HD capture or encoding demands. With only one PCI-E slot, it is capable of preserving up to 4 videos from analog or digital sources in SD or HD quality simultaneously. The dual HDMI ports receive the uncompressed 1080p video from HD camcorders, set-top boxes or other video devices directly in 8-bit color precision. Meanwhile, the PCI-Express interface takes care of high-speed transmissions without frame dropping. 

In addition to the comprehensive video input selection, the VESA resolution support allows the DarkCrystal HD Capture Duo to meet various needs from different industries. Also, this four-in-one capture card is fully DirectShow compatible. That means it can work perfectly with your familiar video streaming or post-production software. To expand the scope of application, the DarkCrystal HD Capture SDK Duo is bundled with a Software Development Kit that includes frequently used functions for web broadcasting, lab work, healthcare purposes and manufacturing. This feature also makes it an ideal solution for system integration.
Capturing HDCP (HIGH-Bandwidth Digital Protection) is not supported.

Manufacturer Part Number
Full Product Specifications


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Interface: PCIe 1X (Gen2)
S-Video x 2
Composite (RCA) x 2
Component (YPbPr) x 2
Audio (L/R) x 2
HDMI x 2
Input Video Resolution:
Composite & S-Video:
720x480@60i, 720x576@50i
720x480@60i/60p / 720x576@50i/50p / 1280x720@50p/60p / 1920x1080@50i/60i
640x480@60/72/75/85 / 720x480@60i/60p / 720x576@50i/50p / 800x600@56/60/72/75/85 / 1024x768@60/70/75/85 / 1152x864@75 / 1280x720@50p/60p / 1280x768@60 / 1280x800@60 / 1280x960@60 / 1360x768@60 / 1280x1024@50 / 1440x900@50 / 1600x1200@30 / 1680x1050@35 / 1920x1080@50i/60i / 1920x1080@24/25/30
Capture Video format :
Composite & S-Video:
720x480, 720x576
640x480 / 720x480 / 720x576 / 1280x720 / 1920x1080
640x480 / 720x480 / 720x576 / 800x600 / 1024x768 / 1152x864 / 1280x720 / 1280x768 / 1280x800 / 1280x960 / 1360x768 / 1280x1024 / 1440x900 / 1600x1200 / 1680x1050 / 1920x1080
Pixel Format: YUY2(4:2:2), YVYU(4:2:2), UYVY(4:2:2)
Color Adjustment:
Composite & S-Video: Brightness, Contrast, Hue (NTSC only), Saturation
Component: Brightness, Contrast
HDMI: Not supported
Multi-Card Support: Yes (up to 8 pcs)
Programming Language: Visual Basic, Visual C++, Delphi, C#, VB.NET
SDK Framework: General DLL
Operating Environment:
0 to 60 ℃
Humidity: 0 to 90% RHNC
Storage Environment:
Temperature: -20 to 60 ℃
Humidity: 0 to 90% RHNC
Power Requirement: 3.3V max 3A
Dimensions (mm): 138 (L) x 125.18 (W) x 1.57(H)

System Requirement

For SD Video Capturing (MPEG-2 Format)
Intel® Core™2 Duo Processor E8400 3.0GHz
AMD Athlon™ II X3 450 3.2GHz
For HD Video Capturing (MPEG-2 Format)
Intel® Core™ i5 750 or AMD equivalent
For HD Video Capturing (H.264 Format)
Intel® Core™ i5 3570 or AMD FX-8150 Eight-Core
512 MB RAM
*2GB RAM is recommended for HD video capturing.
VGA card with support for DirectX9.0c or above
*Standalone graphics card is recommended for HD video capturing.
Sound Card: Yes
Operating System: Windows® 8/7/Vista™/XP (32/64-Bit), Linux
3rd Party S/W Support

  • Telestream Wirecast
  • Adobe Flash Media Live Encoder 3
  • Adobe Premiere Pro CS
  • UStream Producer
  • XSplit
  • Microsoft Windows Media Encoder 9
  • Microsoft Express Encoder
  • GraphEdit
  • AMCap
  • Corel VideoStudio
  • CyberLink PowerDirector
  • CyberLink PowerProducer
  • Real Producer (v13)
  • VLC Media Player
  • Sony Vegas Pro 10
  • Learning Valley - Presentations2GO
  • Any application which needs Direct Show compliance device