4 integrated USB 2.0 ports expand multiple USB devices remotely, meeting multi-peripheral long-distance connection needs.; Extends USB signal up to 50m/165ft through common Cat5 to Cat7 Ethernet cables, breaking short cable limitations.; Supports power over cable design, simplifies wiring layout and avoids extra power supply troubles for easy deployment.; Plug and play design with no driver installation required, fast connection and stable operation for quick use.; Wide compatibility with USB 2.0 devices, strong anti-interference performance for smooth long-distance data transmission.