Black Box USB 2.0 Extender - CATx/LAN, 4-Port
Black Box USB 2.0 Extender 4 Port CATx
Black Box USB Extender - Single-Mode Fiber, 4-Port
SIIG 4-Port USB 2.0 Extender
SIIG, Inc 4-Port USB 2.0 Hub Extender
StarTech.com Serial DB9 RS232 Extender over Cat 5 - Up to 3300 ft (1000 meters)