Computer Accessory Sets features: EDUP EP-MS150N Mini USB High Power 11G 150M Wireless Network Card + Antenna(Black) Color: we send based on the color or size of the main image of the product page. Quantity：we send based on quantity on title, if there is no quantity in the title, we send based on description. 1) Standards: IEEE802.11g(darft), IEEE802.11b. 2) Effective working distance:200 meters farthest indoor and 830 meters farthest outdoor (varies due to the environment) 3) Frequency range:2.4-2.4835 GHZ 4) Number of channels :13 5) Support the network protocol: CSMA/CA with ACK. 6) Transfer method: Direct Sequence Spread Spectrum (DSSS). 7) Sensitivity:54:-68dBm@10%PER,11M:-85dBm@8%PER,6M:-88dBm@10%PER,1M:-90dBm@8%PER,256K:-105dBm@8%PER(typical value). 8) Antenna :5dBitenna 9) Modulation: BPSK,QPSK,CCK and OFDM(BPSK/QPSK/16-QAM/64-QAM) 10) Bus interface :USB 11) Security features: Support 64/128/152bit WEP data encryption, support for WPA,IEEE802.1X,TKIP,AES encryption and security mechanisms, etc. 12) Status indicator :Status 13) Support System:Windows98/2000/XP/VISTA/Windows7 14) Other technical parameters: the provision of two working modes: centralized control type(infrastructure)and Peer-to-Peer(Ad-Hoc) 15) Characteristics: launch 54/48/36/24/18/12/9/6/11/5.5/2/1Mbps