Note:no power supply needed, support 3d! cat-5e/6 cable can substitute hdmi cable to achieve long distance transmission.doesn’t support connect any adapter/hdmi cable to our hdmi extender except one rj45 cat5e/cat6/cat7 ethernet cable.doesn’t support connect to wifi router directly!note:transmission distance can be up to 30 meters for 1080p using cat-6 cable(support without obstacles). compact size. support highest video resolution 1080p.if you use cat 5e cable,doesn’t -support distance reach to 30 meters-support 165mhz/1.65gbps per channel(4.95gbps all channel) bandwidth. support uncompressed audio such as lpcm. -support compressed audio such as dts digital, dolby digital( including dts-hd and dolby true hd)if you use cat6, there is image but no sound, please don’t add adapter. and reasons why the hdcp protocol cannot be supported