is the xbox 360 wireless receiver a low/full speed or a high speed usb 2 device? (compatibility with at90usb1287 host)

[This might be a bit off-topic, but I'm not sure where it would be a better fit]
I would like to control my uC with a wireless XB360 Gamepad. The at90usb1287 has a usb 2.0 low/full speed host controller (no high speed).
Does anyone know which speed the receiver requires? The only mention I could find on various sites / datasheets was "powered usb 2 port".
(I don't own a receiver, so I can't test it myself, unfortunately.)
For the software side, I plan to use LUFA. Since there are already drivers for Linux / Arduino, where I can take a look at the protocol, that should be doable.
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Will any wireless adapter work on Xbox 360?
You cannot use just any USB wireless adapter you want, only those labeled for use with the Xbox 360, because all wireless adapters require drivers. The Xbox 360 does not allow you to install drivers so you can't use typical USB wireless adapters you use on the computer.Can Xbox 360 use USB controllers?
Connect a wired Xbox controllerPlug the Xbox 360 Wired Controller into one of the two USB ports on the front of the Xbox 360 console. To disconnect the controller, pull on the connector, not the cable.Do I need a wireless receiver for Xbox 360 controller?
Note A standard Xbox 360 wireless controller can be connected to a Windows PC, but you must have an Xbox 360 Wireless Gaming Receiver to play games, even if you have an Xbox 360 Play & Charge Kit.360 Controllers work with Windows 8.1, even with non-Microsoft wireless receivers
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