The CS1308 KVM switch allows access & control up to 64 computers from a single console (keyboard, mouse, & monitor). As many as 8 additional switches can be cascaded bringing the total number of connected computers to 64 computers that can be controlled from a single keyboard-monitor-mouse console. The switch supports both USB (Universal Serial Bus) & PS/2 connections for the console & computers. Please note: networking components such as switches, routers, KVM & wireless devices require that speeds & standards be consistent throughout the network to gain optimum performance. To avoid compatibility clashes or for advice, please contact us on solutions@ebuyer.com.