Avocent DVI 4-PORT, SwitchView. Keyboard port type: USB, Mouse port type: USB, Video port type: DVI-I. Maximum resolution: 2560 x 1600 pixels, Maximum digital resolution: 2560 x 1600 pixels, Maximum analog resolution: 1600 x 1024 pixels. AC input voltage: 100-240 V, AC input frequency: 50/60 Hz, Power consumption (typical): 20 W. Width: 181 mm, Depth: 264 mm, Height: 64 mm. Certification: FCC Class B, UL, cUL, ICES-003 Class B, CE, C-Tick, VCCI Class B