USB extenders over RJ45 LAN cables can transmit USB 2.0 signals up to 50 meters (164 feet) using a standard Cat5e or Cat6 Ethernet cable. These devices pair to bypass the standard 5-meter USB cable limitation, making them ideal for security DVRs, printers, and remote workstations. Power Constraints: Passive (unpowered) extenders cannot support high-power USB devices like external hard drives or high-resolution webcams. For those, you must purchase an active, externally powered extender. Not a Network Device: These adapters only use the physical copper inside an Ethernet cable to carry the USB signal. They cannot be plugged into network switches, routers, or internet hubs. Cable Quality Matters: To reach the full 50-meter distance without data loss or lag, it is highly recommended to use a solid copper Cat6 cable rather than Cat5e.