Trichromatic aberration, high clear .No supply and software drive needed.4 standard "Y-/cd-Pr/, L-Audio-R", 3 in 1 out.Convenient operation, just press the relative button "1, 2, 3" when you want to one of the four connected devices.Easy connection, simply 3 audio & video devices (such as for 360, , PS3, DVD) to the "Input 1, 2, 3" connectors while your TV to the "Output" connector.size:15.5 x 11 x 4cmMaterial:Aluminum alloycolour:blackPackage Contents:1 * RGB SwitcherOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.