Devices that convert an analog video signal (such as that produced by a DVD or video player) into a digital signal which can then be shown on a computer.
j5create JVA01-N Video Capture USB Hub

j5create JVA01-N Video Capture USB™ Hub

j5 create
£38.99
StarTech.com USB Video Capture Adapter Cable - S-Video/Composite to USB 2.0 SD Video Capture Device Cable

StarTech.com USB Video Capture Adapter Cable - S-Video/Composite to USB 2.0 SD Video Capture Device Cable - TWAIN Support - Analog to Digital Converter for Media Storage - Windows Only

StarTech.com
£39.99
StarTech.com High-Definition PCIe Capture Card - HDMI VGA DVI & Component - 1080P - TAA

StarTech.com High-Definition PCIe Capture Card - HDMI VGA DVI & Component - 1080P - TAA

StarTech.com
£95.99
StarTech.com HDMI to USB C Video Capture Device 1080p 60fps - UVC - External USB 3.0 Type-C Capture/Live

StarTech.com HDMI to USB C Video Capture Device 1080p 60fps - UVC - External USB 3.0 Type-C Capture/Live Streaming - HDMI Audio/Video Recorder Adapter - Works with USB-C/USB-A/Thunderbolt 3 - TAA

StarTech.com
£100.99