For sale are multiple TP-Link TP-9020P powerline adapters. These implement the AV2000 standard which provides up to 2000Mbps raw bandwidth between devices. Network performance is, of course, lower than this number. Each Ethernet port is rated at 1000Mbps.
This is ideal to extend Ethernet across rooms without having to run CAT5 wires, which could be complex and costly.
Postage and packing surplus (if any) to be refunded. Discounts available for buying multiple adapters.