Startech .com USB 2.0 Extender Kit over Cat5e/Cat6 Cable (RJ45)Up to 165ft ( 50m)USB Port over Ethernet CablePowered480MbpsUSB... USB2001EXTV - Corporate Armor
StarTech.com HDMI Over CAT5e/CAT6 Extender w/Power Over Cable - 165ft (50m) - ST121SHD50 - Audio & Video Cables - CDW.com
CAT6 TROMMEL 50M: Cat.6 installation cable reel, 50 m at reichelt elektronik