Yuan SC400N4 M2 HDMI M.2 HDMI Video Capture Card with 4 x HDMI Inputs at 1080p60

Four cameras on a robot, a kiosk or a compact multi-view recorder need four inputs, but the host is often a small board with an M.2 slot and no PCIe slot at all. The SC400N4 M2 HDMI is Yuan’s 4-channel M.2 HDMI video capture card for that design, with four HDMI inputs on a 22 x 80 mm module.

Every channel captures at up to 1920 x 1080p at 60/50 fps, and the card also accepts 1080i, 720p and PC resolutions from 640 x 480 to 1280 x 1024. Audio arrives as four stereo embedded channels. Capture and preview formats are RGB24 and RGB32 at 4:4:4, YUY2 at 4:2:2, and YV12 and NV12 at 4:2:0, all 8-bit, so host software can take frames in the format it already uses. On-board processing covers cropping and scaling, automatic signal detection and deinterlacing. There is no hardware encoder, so any compression runs in software on the host.

The M.2 2280 module uses an M key and runs PCIe x4. Yuan supplies a Windows and Linux SDK for custom applications, and the card works with DirectShow and V4L2 software; Yuan’s compatibility list names vMix, OBS, Zoom, Skype, Teams, Discord, Slack, Cisco Webex and GoToMeeting. The SC400N2 M2 HDMI is the 2-channel card on a B+M key module, and the SC400N4 HDMI puts four HDMI inputs on a full height PCIe card.

Yuan lists driver support for Windows 7, 8, 8.1 and 10, Linux 2.6.14 or higher in 32-bit and 64-bit builds, Linux ARM, and NVIDIA Jetson TX2, Nano, AGX Xavier and Xavier NX modules. Yuan lists multi-instance and multi-device support for systems that run more than one capture session or card. The card measures 22 x 80 mm, and the host needs an M key M.2 slot with four PCIe lanes to run it at full width.