PCI 54M Wireless Adapter feature:

Complies with IEEE 802.11g, IEEE 802.11b  standards
Supports 54/48/36/24/18/12/9/6/11/5.5/2/1Mbps wireless LAN data transfer rates
32-bit PCI connector
Supports 64/128/152-bit WEP, complies with 128 bit WPA standard(TKIP/AES), supports MIC, IV  
Expansion, Shared Key Authentication, IEEE 802.1X
Supports Windows 98SE, ME, 2000, XP, Vista 
Provides simple configuration and supervisor program
Supports Ad-Hoc/Infrastructure modes
Supports Wireless Roaming, can move among different AP and no break
Fixed Antenna

Specifications

Standard：             IEEE 802.11g, IEEE 802.11b,
Interface:             32-bit PCI
Frequency Range：      2.4GHz-2.4835GHz
Radio Data Rate:：     11g: 54/48/36/24/18/12/9/6M (Auto-Sensing)
                       11b: 11/5.5/3/2/1M (Auto-Sensing)
Channel:               1~11 (US, Canada) ;   1~13 (Europe) ;   1~14 (Japan)
Spread Spectrum：      DSSS
Modulation:            BPSK, QPSK, CCK and OFDM (BPSK/QPSK/16-QAM/ 64-QAM)
Transmission Distance：Indoor up to 100m , outdoor up to 300m (it is limited in an environment)
Receive Sensitivity@PE:11g: -65dBm@10% PER
                       11b : -78dBm@8% PER         
Transmit Power：       15dBm
Antenna plus ：        2dBi
LED Indicator :        Status 
Data Security：        WPA; 64/128-bit WEP; TKIP/AES
Environment：          Operating Temperature: 0℃~40℃ (32℉~104℉)
Operating Humidity:    10%~90% non-condensing
Safety & Emission:     FCC, CE
Operation System：     WIN98/ME/2000/XP/VISTA