Avocent Switch View MM1 4 Port PS/2 & USB (Universal Serial Bus) KVM Switch with built-in USB (Universal Serial Bus) Hub & audio. Independent switching for KVM & four USB (Universal Serial Bus) 1.1 hub ports; Multiplatform USB (Universal Serial Bus) or PS/2 system support; Integrated USB (Universal Serial Bus) hub for sharing of USB (Universal Serial Bus) peripherals/devices; Audio Support- share speakers & a microphone; 2048 x 1536 high VGA resolution ideal for desktop graphical applications; Auto scanning allows easy monitoring of attached computers; Easily add computers without powering down the KVM switch or attached computers; Error free boot up with keyboard & mouse emulation; Compatible with USB (Universal Serial Bus) or PS/2 computers including Mac G3/G4, i MAC. 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.