Usb Specifications Limit The Maximum Run For Usb To Only 15Ft. This Can Make Placement Of Usb Devices Difficult Especially In A Wide Area. Our Usb Over Cat5E/6 Extender Eliminates The Range Limit Obstacle By Allow You To Extend Usb Connection Over An Astounding 150Ft By Using Cheap Economical Cat5E/6 Cables. This Can Be Especially Convenient If You Already Have Unused Ethernet Cabling Pre-Installed In Your Walls. Installation Is Simple. Just Connect One Piece To Your Computer Or Powered Usb Hub The Other Piece To Your Usb Peripheral Device And Connect A Ethernet Patch Cable In Between. The Device Is Self Powered So There'S No Need To Connect Any Power Adapters. For Best Performance It Is Recommended To Use Cat6 Stp Cables. Features.