This is an auction for a pair of TP-Link TL-PA511 AV500 Powerline Gigabit Adapters. They are used but are in full working order. 

These adapters are ideal for streaming HD videos, playing online games and transferring large files at a speed of 500Mbps. With a single Ethernet port, you can connect up to two devices to your home network, making it a perfect solution for homes and small offices.