[Yaniv Balmas] and [Lior Oppenheim] spent some time reverse engineering the firmware for one of these devices ... could get a 4-port KVM which was little more than an AV-style switch.

Ugreen 2-port KVM/4-port USB switch: was $49.99 now $39. ... It’s traditionally a switching device which allows users to control multiple host machines from a single keyboard, monitor, and ...

Ports on the back are used to connect peripherals and client devices. Scalable, 8-port and 16-port expanders that provide cross-platform support allow IT personnel to increase the number of computers ...