Yuan SC540N1 M2 HDMI (B/M) M.2 HDMI Capture Card with 1080p60 Input

Some embedded boards and very small PCs only have a short M.2 2242 slot, which rules out most capture cards. The SC540N1 M2 HDMI (B/M) is Yuan’s M.2 HDMI capture card in the 2242 size, built on a 22 x 42 mm module for recording a camera or computer output in those hosts.

The HDMI input accepts up to 1920 x 1080p at 60/50 fps, along with 1080i, 720p and PC resolutions from 640 x 480 to 1280 x 1024, and the card captures at up to 1920 x 1080p at 30/25 fps. Audio is taken from the HDMI embedded stream, with analog left and right through a wafer connector. 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.

The card uses a B+M key and runs PCIe x1. 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. 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 SC400N1 M2 AIO captures at the full 1080p60 and adds SDI with loop-through on a 2280 module, and the SC540N1 M2 HDV takes HDMI, DVI-I and YPbPr on a 2260 module.

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 42 mm, the short 2242 length, so it fits hosts with a 2242 M.2 slot.