Yuan SC400N2 M2 HDMI M.2 HDMI Frame Grabber with 2 x HDMI Inputs at 1080p60

A two-camera stream, a conference room with a presenter and a slide feed, or a test station that records two screens all need two HDMI inputs in a PC that may be no bigger than a book. The SC400N2 M2 HDMI is Yuan’s 2-channel M.2 HDMI frame grabber for those installs, with two HDMI inputs on a 22 x 80 mm module.

Both channels capture 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 two stereo embedded channels from the HDMI streams. 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 a B+M key and runs PCIe x2. 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 SC400N4 M2 HDMI doubles the inputs to four on an M key module, and the SC400N2-L HDMI puts two HDMI inputs on a low profile 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, the standard 2280 length, so it fits a 2280 M.2 slot on the host board.