i got a pair of good working Comtrend PLC-9000 Powerline Ethernet Adaptors for Sale at $50 only. For spec wise and user manual, pls use google as "comtrend plc9000 user manual"

it is a powerline ethernet adaptor which uses your home power point for connection for many stuffs like your modem to your pc in another room.

Contact:97536835 (call or sms) as i seldom check this site