Features: KVM switches are typically used by administrators to manage multiple computers or environments where users must operate two or more computers, including network operations centers, information centers, server rooms, software development, test labs, service centers, departmental LANs, and desktop setups with multiple computers. No software required; switch between host computers using the manual button Multiplatform support for Windows, Mac, Linux, and Sun systems USB mouse port supports USB 1.1 hub and USB 1.1 peripheral sharing Specifications: Item: 4-Port Manual KVM Switch Size: approximately 10 x 6.5 x 2.5 cm / 3.93 x 2.56 x 0.90 in Maximum resolution: 1920 x 1440 Material: ABS Number of supported computers: 4 Keyboard emulation: USB Mouse emulation: USB Keyboard input/output: USB Mouse input/output: USB LED indicators: 4 Note: Due to lighting effects and shooting angles, slight variations in product appearance may occur. Please allow 0–1 cm measurement deviation due to manual measurement. Package includes: 1 x KVM Switch 4 x KVM Cables