IOGEAR GCS1724 VGA KVM Switch with PS/2 & USB (4 Port) VGA KVM switch, PS/2 & USB; Dual interface supports computers with PS/2 or USB keyboards & mice; Computer selection via front panel push buttons, hotkeys & mouse; Video DynaSync(TM) optimizes display resolution & eliminates boot-up display problems; Supports gaming keyboard; Auto scan mode for monitoring all computers; Firmware upgradable; Does not require power supply; Compatible with Windows(R), Linux(R), Mac(R) & Sun(R); 4 ports;

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