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 Wireless
USB Adapter, you will experience the best wireless connectivity available.

Features: 

·         Connects at a full 54Mbps High Speed Transfer Rate for 802.11g.

·         Detachable antenna with RP-SMA connector - upgradeable to a higher power antenna
for a wider wireless coverage.

·         High Output Power up to 500mW (27 dBm) for extend the coverage range up to 5x
than standard USB adapters

·         Operating distance of up to 1000 meters in free space

·         Plug -and-Play compatible with all computers.

·         Software AP Function, Support PSP, X-Link, QoS, WMM, BT3

·         High security 64/128/256bit WEP Encryption, TKIP, WPA, 802.11

Diagram:

High Power! High Throughput! Long Distance!

Enjoy wireless internet with your internet terminal (Notebook, PSP, Nintendo, XBOX, etc.)

Package Contents:                   Retail Color Box:

 SPECIFICATIONS:

Model	GS-27USB-50
Standard:	IEEE 802.11b, IEEE 802.11g (WIFi Compatible)
Chipset	Realtek RTL8187L+RTL8225 RTL8187B & 8187L both available!
Frequency Band:	2.412GHz ~ 2.484GHz unlicensed ISM band
Data Rate:	IEEE 802.11b: 1, 2, 5.5, 11Mbps IEEE 802.11g: 6, 9, 12, 18, 24, 36, 48, 54Mbps
Output Power	27dBm/500mW
Transmitter Power:	11g 19 ± 2dBm@54Mbps 11b 25dBm ± 2dBm
Operating Range:	Up to 1000M in open environment
Power Consumption:	Transmit:＜600mA Receive:＜400mA
Antenna	Model:GS-27USB-50 (with 5dBi RP SMA dipole antenna)
Security:	WEP (64/128/256bit), WPA, WPA-PSK, WPA2 TKIP/AES, WPA2-PSK
I/O Interface:	USB2.0/1.1
Operating System:	Windows98SE, ME, 2000, XP, SP2, Vista, MAC, Linux
Operating Temperature:	-20°C ~ +70°C
Storage Temperature:	-40°C ~ +80°C
Humidity:	10 ~90% (non-condensing)
Channels:	2412~2462 MHz (US) 11 channels, 2412~2472 MHz (EU) 13 channels 2412~2484 MHz (Japan) 14 channels
LED:	Link/Active
Receive Sensitivity:	Operating at 11Mbps:＜-82dBm@8%PER, 54Mbps:＜-65dBm@8%PER
Data Modulation Type	802.11b: BPSK,QPSK, CCK 802.11g: OFDM
Power	USB Host DV5V

Gsky-link products demo-How to work with Win7 -
http://www.youtube.com/watch?v=WODW8UfzWCg

or

Download the driver from Realtek Public website at - *Chose RTL8187L*

http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=2&PNid=1&PFid=1&Level=6&Conn=5&DownTypeID=3&GetDown=false&Downloads=true#RTL8187L