Blackmagic Design VIDPROREC H.264 Pro Recorder 3G-SDI/HDMI and Analog YUV/S-Video/Composite Video to H.264 Encoder
4K Video capture enclosure: how to buid one for your Mac - 9to5Mac
Intensity Pro 4K | Blackmagic Design
Blackmagic Design BMD UltraStudio 4K Mini Capture Output Box Professional Broadcast SDI Video Switcher For New Media Live|Photo Studio Accessories| - AliExpress