WifiSky 1600mW High Power 802.11b/g 54Mbps USB 2.0 Wireless Network Dongle with Antenna

Pros: Very low price and excellent coverage better than the G-sky that I have also tested Realtek 8187L chip set to perform audits excellent wifi and fully compatible with Back Track 3 and 4

Cons: 10 dbi antenna very large and gives the same power as a 6 dbi antenna smaller I think you can not decrypt wpa only wep key with this device

Other: Good buy especially good price, only problem take long to get home just need to send it in Dx faster. If items arrive in less time would be great, thanks Dx.

Pros: Using it for a more than one year and satisfied with a quality, price, and usefullnes. Havent got any problems anytime with it. Used it for getting a router signal which was weak in one part of the company because of many walls between pc and router, and now its working on about 20m with 70% of signal.

Cons: Like everyother similar antenna, its plastic, so you need to take care of that and you should fix it somewhere where you are using it because if antenna falls from somewhere it will easily break.

Other: If you need good wifi antenna with Realtek chipset you should take it.