Aten CS74E - 4-port PS2 KVM.

The KVM (Keyboard, Video, Mouse) switch is a control unit that allows access to four computers from a single console (keyboard, monitor, and mouse). With its custom designed connectors, the significantly reduces the number of ports required for a 4 port KVM switch. The design features a custom SPHD-15 male connector for the keyboard, video, and mouse, and SPHD-15 female connectors for the cables that connect the switch to the computers. Package Contents: 1x 4 Port PS/2 KVM Switch 2x Custom KVM Cable (VGA, PS/2; 1.2m/4ft) 2x Custom KVM Cable (VGA, PS/2; 1.8m/6ft) 1x Console Adapter Cable (50cm) 1x User Instructions