Gsky-link GS-27USB-50 has high power and high sensitivity. Further, it provides an external antenna which can easily advance Your distance and performance more flexible. To protect your Wireless connectivity, the high-speed wireless USB adapter can Encrypt all wireless transmissions through 64/128/256-bit WEP Data encryption and also supports WPA. With the High-Speed WirelessUSB Adapter, you will experience the best wireless connectivity available.

Technical Specification:
Wireless standards: IEEE 802.11b/g
USDB2.0 standard (also compatible with USB 1.1)
Interface: USB2.0 mini USB
Frequency Band: 2412-2462MHz(US)11 channels
2412-2472MHz(EU)13 channels
2412-2484MHz(Japan)14 channels
Modulation: BPSK, QPSK, CCK and OFDM
Antenna Connector: SMA
Antenna Type: Model: GS-27SUB-50(with 5dBi RP SMA dipole antenna)
Model: GS-27SUB-70(with 7dBi RP SMA dipole antenna)
Security: WEP 64/128, 802.1* supported
 Wi-Fi Protected Access(WPA), WPA-PSK, WPA II
Supports Data Rate: 54Mbps High Speed Rate for 802.11g
LED:  link/Active
Operating System Support: windows 98SE, ME, 2000, XP,Vista, Linux,Mac
Operating Temp: -20℃~ +70℃
Storage Temp: -40℃ ~ +80℃

Other information:

We supply also OEM producing for other brand wifi usb adapters, like alfa. See pictures as below, and welcome comtact us for more information.