... "TFT/Keyboard/Touchpad/100~240V AC Power/4 Port Switch;KVM-1508U 15"TFT/Keyboard/Touchpad/100~240V AC Power/8 ... various operating system: Microsoft, Linux, Unix, etc. Specification: Model:KVM-1504H KVM-1508H KVM-1516H /Direct 8, Max: 256 / Direct 16, Max: 512Cable ... port:D-SUB15 (LCD, PS11/USB keyboard, mouse),OSD switch SupportSwitch ...