Control two computers through one keyboard, monitor & mouse. This self-powered switch requires no AC adapter. Speaker & microphone connections allow you to share audio components between computers, while independent switching provides an uninterrupted flow between machines. Operate the switch via hot keys, software or buttons on switch. Compact design saves desk space & compatible with all major operating systems. Connector / Port / Interface: Audio; HD15 (Female); HD15 (Male); USB; Number of Ports: 2; Connects Devices (From / To): Computer to Keyboard, Monitor, Mouse & Speakers; Cable Type: 3.5 mm Audio; KVM.