if would like to order two antenna . then add 0.5US$per.

Product Features: 1. 2500mw high power and high sensitivity

2. 25dBi SMA antenna or 25dbi+5dbi

3. Easy set up on any computers which have USB interface

4. Operating system support: Windows 98SE, ME, 2000, XP, Vista, Linux, Mac, Win 7

5.high free connection to internet ,thats mean no more monthly fees to the providers

Specification

Standards

IEEE 802.11g, IEEE 802.11b

Wireless Signal Rates With Automatic Fallback

11g: Up to 54Mbps(dynamic)

11b: Up to 11Mbps(dynamic)

Frequency Range

2.4-2.4835GHz

Wireless Transmit Power

<20dBm (EIRP, For countries using CE Standards)

<26dBm (EIRP, For countries using FCC Standards)

Modulation Type

OFDM/CCK/16-QAM/64-QAM

Receiver Sensitivity

(without antenna)

802.11g

54M: -76dBm

36M: -81dBm

12M: -89dBm

9M: -91dBm

6M: -92dBm

802.11b

11M: -91dBm

5.5M:-93dBm

1M: -94dBm

Work Mode

Ad-Hoc & Infrastructure

Wireless Security

64/128 bits WEP

WPA/WPA2, WPA-PSK/WPA2-PSK (TKIP/AES)

Support Operating System

Windows 7(32/64bits), Windows Vista(32/64bits), Windows XP(32/64bits), Windows 2000

Hardware Specification

Interface

Mini USB2.0

Antenna

36dBi, Detachable SMA antenna

Certifications

CE, FCC, RoHS

Operating Temperature

0oC ~40oC (32oF~104oF)

Storage Temperature

-40oC ~70oC (-40oF~158oF)

Relative Humidity

10% ~ 90%, non condensation

Storage Humidity

5%~90% non-condensing

Dimensions

(130 x 35 x 190mm)