No power supply needed. External IR receiver base w/ remote Automatic signal detection Switch easily between any three HDMI sources 24k gold plated connector Extends the range of HDMI compliant device by equalizing and re-clocking the HDMI signal Product DescriptionThe 3×1 HDMI mini switcher routes high definition video (in multiple resolutionsup to 1080p) and digital audio from any one of the three sources to display unit. Three inputs accommodate the simultaneous connection of up to three high definition video sources, such as satellite systems and HD DVD players. The output sends the high definition audio/video signals to a high definition display. Aside from the manual switching, the switching can also be done via theIR r… More >> Apogee HDMI 3×1 Mini Switcher v1.3b Full HD 1080p – 25m Amplified with External IR Receiver Remote Control