With this KVM switch it is possible to control 2 computers with only one keyboard, mouse and monitor. To select the computer you want to use, just push the button on the front of the switch.
The connections of this KVM switch are for the keyboard and mouse both ps2 female, for the monitor it is a DVI female

Usage: Desktop
Connection B: 2x DVI-I 24+5-Pin Female
2x PS/2 Female
Colour: Black
Material: Plastic
Electronic device type: DVI
Connection input: 2x DVI-D 24+5-Pin Female
Connection output: 2x DVI-D 24+5-Pin Female
Monitor connection: DVI
Mouse and keyboard connection: PS/2
Operating system: Windows 10
Windows 8
Windows 7
Windows Vista
Ports: 2-Port
Quantity: 2

INPUT: A DVI female + ps2 MOUSE female + ps2 KEYBOARD female
B DVI female + ps2 MOUSE female + ps2 KEYBOARD female

OUTPUT: DVI female + ps2 MOUSE female + ps2 KEYBOARD female

• Maximum resolution: 1920x 1200