StarTech.com StarTech.com USB VGA KVM Console Extender w/ Serial & Audio Over Cat5. Console port: RS-232. Dimensions (WxDxH): 156 x 112 x 26 mm, Weight: 0.25 kg. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -40 - 70 °C, Operating relative humidity range: 5 - 80 %