HDMI vs. SDI for video: What's the difference? - Epiphan Video
ScreenPort SDI Pro - NEBTEK - 3D | HD | 4K Video Assist Specialists
Switch SDI 4 Ports - Needle 4 BNC SDI inputs to One Output - SD-SDI/HD-SDI and 3G-SDI 297MB/s Compatible - with Remote Control and Possibility of Control by RS232 COM Port :
SDI to USB3.0 Video Capture & Streamer – Muxlab Dealer Portal