no replacement. Switches two high-definition displays between two DisplayPort-equipped computers with audio/video and USB peripherals Switch between two computers (each using two graphic DisplayPort outputs) effortlessly using the Gefen 2x2 DPKVM Switch. With the output utilizing two displays and two USB 2.0 ports users can switch audio video and USB for each computer. Access two computers from one workstation without having to use a network. Switch through the front panel ""select"" button using the supplied IR remote control the RS-232 serial port or the IP control. The 2x2 DPKVM Switch is compatible with all operating systems using DisplayPort and USB. How It Works: Connect two DisplayPort high-definition displays USB 2.0 keyboard/mouse or other USB 2.0 peripherals to the 2x2 DisplayPort KVM Switch output. Connect the DisplayPort USB and audio ports on both computers to the 2x2 DPKVM Switch input using the supplied cables. Note: If the source and/or display is not 100% DisplayPort compliant a protocol-specific protocol adapter will be required in order to connect the source to the Switcher and/or the Switcher to a high-resolution display.