2 port USB KVM Switch 1) with USB2.0 Hub, MIC and audio 2)No external power requuired 3)No software,No driver required 2 port USB KVM Switch with USB2.0 Hub, MIC and audioSupport Windows ,NT, UNIX, LINUX, NOVELL, DOS ect operating system Resolution: 1924×1440/60HZ Bandwidth: 250MHZ support plug and play Switch mode: manual, hotkey Plastic shell design Weight: 120g