Cs9138 is a high efficiency kvm switch which provides the most efficient solution to fulfill the management needs of server networks it is a kvm switch with 8 ports and can control 8 computers it allows connections in 3 tiers by cascade with 73 sets of cs9138 users can connect up to 512 servers please note networking components such as switches routers kvm and wireless devices require that speeds amp standards be consistent throughout the network to gain optimum performance to avoid