Posting this on behalf of a friend of mine in the hope that you can help:

I’ve failed several times now to find a suitable WLAN USB dongle that works out of the box on Debian testing. Often manufacturers change the chipsets without changing the version numbers, the product pages are incomplete or even state wrong information.

I turn to you, in the hopes that someone can give me helpful pointers. The dongle should have:

• USB Dongle, i.e. no external router and the like
• 5 GHz support and 802.11n (“agn”)
• work nicely on Debian testing (non-free is okay, but ndiswrapper or manually building modules isn’t)
• available in Europe/Germany

If you have any hints, please send them directly to breunig AT uni-hd DOT de. Thanks!