US 
Yuan SC542N1 PCIe HDMI, SDI and DVI Capture Card with 1080p60 Input
PCI ExpressSC542N1 Overview
Lecture capture, test benches and streaming PCs often face a mix of sources, from a modern HDMI laptop to an SDI camera or an older composite feed. The SC542N1 is Yuan’s all-in-one PCIe HDMI, SDI and DVI capture card for that situation, with HDMI, DVI-I, SDI, YPbPr, S-Video and composite inputs feeding one capture channel.
HDMI and DVI signals are captured at up to 1920 x 1200p and 1920 x 1080p at 60/50 fps without dropping frames, along with 1080i, 720p and PC timings down to 640 x 480. SDI covers 1080p60/50, HD-SDI and SD-SDI formats, YPbPr runs up to 1080p60, and composite and S-Video take 720 x 480i and 720 x 576i. Capture and preview formats cover RGB24 and RGB32 at 4:4:4, YUY2 at 4:2:2, and YV12 and NV12 at 4:2:0, all at 8-bit. Embedded audio is captured as stereo 16-bit at 32 to 48 kHz. On-board processing handles cropping and scaling, auto signal detection and deinterlacing. There is no built-in hardware encoder, so any encoding is left to the host software.
The card uses a PCIe x1 Gen2 link. Software support runs through Yuan’s Windows and Linux SDK and standard DirectShow and V4L2 drivers, and Yuan names vMix, OBS, Zoom, Skype, Teams, Discord, Slack, Cisco Webex and GoToMeeting as compatible. The SC550N1 offers the same six input types on a PCIe x1 Gen1 card, and the SC542N1-L HDAV keeps HDMI and the analog inputs on a shorter board.
Operating system support covers Windows 7, 8, 8.1 and 10, Linux from kernel 2.6.14 in 32-bit and 64-bit builds, Linux on ARM, and NVIDIA Jetson TX2, Nano, AGX Xavier and Xavier NX modules. The board measures 107 x 101.3 mm and adds 16 GPIO lines. Yuan lists multi-device and multi-instance support, for hosts that run more than one card or capture session.
SC542N1 Specifications
| Overview | |
|---|---|
| Brand & Model | Yuan SC542N1 |
| Video Capture | |
| Host Interface | PCIe [x1, Gen2] |
| Simultaneous Video Inputs | 1 |
| Video Input | 1x CVBS 1x DVI-I 1x HDMI 1x S-Video 1x SDI 1x YPbPr |
| Video Resolution Input | HD60 [1920x1080p @ 60/50fps] UXGA60 [1920x1200 @ 60/50fps] |
| Video Resolution Output | HD60 [1920x1080p @ 60/50fps] UXGA60 [1920x1200 @ 60/50/30/25/24fps] |
| Color Format | NV12 RGB24 RGB32 YUY2 YV12 |
| Audio Input | 1x HDMI Embedded Audio Input 1x RCA Audio Input 1x SDI Embedded Audio Input |
Official Yuan USA Distributor
Things Embedded is an official Yuan USA distributor, supplying the SC542N1 installed in the capture PCs we build for USA AV and recording projects. Within the Yuan range the SC550N1 carries the same six input types on a Gen1 card, and the SC542N1-L HDV adds a loop-through output for DVI-I and analog sources.
With six input types on one channel the SC542N1 sits among our PCIe capture cards, our HDMI capture cards and our SDI video capture cards. Where one capture PC must accept HDMI, SDI or analog sources at 1080p60 without swapping cards, this is the model to specify.
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