Had only several USB WLAN adapter attempts, including the expensive of AVM. All very humbling in the apartment from the router to the office through several thick walls, so had only 1-2 bar and 2-3 Mbit / s throughput. Then the little brother TL-WN822N tried and thus at least 3 bar and good 12 Mbit / s. That made back hope and so I ordered this good part and behold 5 bar and about 30 Mbit / s! Installation, processing, optics I find perfectly. And even at the price TOP