Function exactly as expected.

I'll keep the review short, for the simple reason that it works as it should. The attenuation (value with which a signal strength loses) a brick wall is about 10db. With 12dB antenna gain to get there easily by (12dB-10dB). Especially as the antenna on the router can be aligned. Together with the router I was able to connect from 1-2Mbit / s (non-orientable WLAN stick, relatively weak performance of the antennas) to ~ 120Mbit / s increase. If no walls in between the 300Mbit / s as such achieved.

So if (ect walls, concrete.) Because of the space infrastructure difficulties with WLAN access points has can create with the antenna remedy.

For radio and radiation cowards: The transmission power is 12 dB at about 10 milliwatts. A mobile phone has 0.25 watts. It is therefore Bedenklos used.