Blackmagic Design UltraStudio Recorder 3G Pocket-sized SDI/HDMI video capture device
DeckLink 4K Extreme 12G - No Trouble®
Amazon.com: SDI Capture Card with Loopout, 1080P SDI to USB 3.0 Video Capture Card, SDI to USB Capture Card for Game Streaming Video Recording for Windows, Linux, OS : Electronics
Blackmagic unveils DeckLink 8K Pro capture card for 'real time 8K workflows': Digital Photography Review
Blackmagic Design DeckLink 4K Extreme 12G Capture and Playback Card | Melrose Mac
Blackmagic Design BMD-BDLKHCPRO8K12G-Capture and Recording Devices | AVProSupply