USB WiFi Cards - From RadioLabs

CaptiFi - High Power USB Wifi Antenna

The CaptiFi Long Range Wifi Antenna is a self-contained all-in-one High Power USB Wifi Antenna that requires no additional equipment to utiilize. With a purpose-built 8dB omni-directional antenna and an enclosed 200mw 802.11B/G wireless adapter, the CaptiFi provides long range wireless connectivity up to 15x farther than an integrated wireless card
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Seed - USB WiFi Adapter || High Power

The Seed! - The easiest and most economical way to make any PC with a USB port wireless. Powered completely by your computer, the Seed is a completely self-sufficient Wi-Fi adapter, which, by itself, will pull in more signals than most other USB Wifi devices in it's price range. Use the Seed by itself, or connect our high gain antennas or amplifiers to pull in signals from farther away then you ever thought possible!
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Wave N - High Power 802.11N Wifi Adapter

The Wave N is an anodized CNC aluminum High power 802.11B/G/N adapter for those who need a rugged, all-in-one, long range, high speed USB WiFi adapter that exceeds even our expectations.
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Wave Magnum - High Power USB WiFi

Now with a whopping 1000mW output!! RadioLabs newest release, the Wave Magnum is the highest power output USB adapter ever released. The Wave Magnum is capable of 802.11B, G and Super G speed allowing up to 108mBps throughput and up to 1 Mile range.
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WaveRV II - Long Range USB Notebook adapter

ON SALE!! The RadioLabs WaveRV II is the perfect solution for those looking for a portable and flexible wireless device. It includes a high power card, USB cable for simple connection to a computer, and a 5.5dB rubberduck antenna. It easily attaches to the back of a notebook, but can also be used with additional cabling and high gain antennas for even more range. For an all-in-one solution, the WaveRV II fits the bill perfectly.
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O2Boost Directional USB Wifi Antenna

The O2Boost USB WiFi Antenna is one of the easiest ways to boost your WiFi range. Just plug the O2Boost into your computer's USB port, point the antenna and use the included software to connect to signals that that you didn't even know existed! With up to 5X the power of standard internal wireless cards, the O2Boost USB Wifi Antenna will give you the ability to search out and connect to hotspots and access points when the standard WiFi hardware just won't cut it.
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