cat5e VGA+AUDIO+USB+MIC extender, the device includes a transmitter and a receiver, which can extend VGA/AUDIO/USB/MIC interface of computer max up to 50m over single cat5e cable. There are 3 USB ports on receiver part, so that user can conenct keybpard, mouse, flash drive etc at the same time.  Max resolution support 1920*1440.  No driver needed, pure hardware design, support plug and play. And it also supports Vista and WIN 7.  with DC9V 1A power adaptor for receiver. Aluminum case, white box packing, with power adaptor, VGA/AUDIO/usb link cables in the package.