PC Wireless Controller Gaming Receiver Adapter For Microsoft XBOX 360 - $25 (albany / el cerrito)

This is a wireless reciever that is used to connect a wireless Xbox 360 controller on a Windows machine for gaming.
I bought this to use with a Raspberry Pi but I found out that it's not compatible for what I was trying to do.
I bought two.
One is brand new the other is open, but like new.
$25 each.
Product description: * Operates using 2.
4Ghz high performance wireless technology allowing you to use controllers up to 10m away from the receiver * Up to 4 Controllers can be used at once via the single adapter * Compatible with all Xbox 360 Wireless Controllers / Accessories * Connects to a powered USB 2.
0 port on a computer * Plugs into a PC USB port and has a 1.
5m cable.
(NOTE: The Wireless Gaming Receiver requires a powered USB port to operate.
If you're using the Wireless Gaming Receiver with a USB hub, the USB hub must have an external power source.
) * Color: White