"Fast" ... but unstable connection

Shipped quickly.
Not too much concern for driver installation and connection management software "Realtek Lan Utility" (something like that) on Windows 7 Ultimate 64 Bit.
The product itself looks good, the antennas are more, the dock holds up well.
I had a Netgear wireless dongle v2 WNDA3100 before, so of course the Alfa's fastest theoretical speed with USB 3.0 between other (144 ~ 150 Mbits / s), but in the ascending and descending flow tests c ' is quite another thing!
Then disconnect / losses incessant signal! Not possible to play online, watch streaming, or simply surf the internet properly, always have to restart the network card, to renew my IP using the included software or physically unplug the adapter!
So for now I re-use my old dongle, slower but more stable. I orienterais me to a dongle Netgear, D-Link and Belkin soon, in some 3.0!
If I rely on my experience as a user, and given the price, I do not really recommend this ...: /