8-Port Combo KVM Switch sP218D 8-Port KVM Switch, Support Computer With PS2 or USB Keyboard Mouse (Optional USB/PS2 Converter). Key Features * Provide driver-free operation where no external software is required, it can be easily operated via OSD interface, Hotkey and Push Button * Support Daisy Chain function with both Bus (8-layer) and Tree (2-layer) topologies * Support multiple Operation System environments with PS/2: MS Windows, Netware, UNIX and Linux * Support iMAC, Power MAC and Sun Micro Systems with USB port * Provide search and naming function for PCs via OSD interface