The NS231 is a 2-port KVM switch, PS/2
Newstar NS231 Black KVM switch
Its low cost, super small size, and high 2048x1536 maximum resolution display capability makes NewStar switches perfect for any application where reliability, compatibility, and faultless operation are important.
Newstar NS231. Keyboard port type: PS/2, Mouse port type: PS/2, Video port type: VGA. Maximum resolution: 2048 x 1536 pixels. Colour of product: Black. Connectivity technology: Wired, Compatibility: PC, Bandwidth: 400 MHz