High Qulaity 8P8C RJ 45 CAT5E Newtwork Ethernet Lan Cable Joiner Extension Coupler Connector RJ45 CAT6 CAT6E Extender Plug From Janple, $96.47 | DHgate.Com
StarTech.com Newer version is USB2G4LEXT2NA, 4 Port USB 2.0 over Gigabit LAN or Direct Cat5e/Cat6 Ethernet Extender System, up to 330 ft - Walmart.com | Startech.com, Usb, Devices