Wireless and USB Adapter EP-N8531 allows you to connect a desktop or notebook computer to a wireless network and access high-speed internet connection.Comply with IEEE 802.11n,they provide wireless speed up to 150Mbps,which is benneficial for the online gaming or even HD video streaming.Standards: IEEE 802.11n,IEEE 802.11g(darft), IEEE 802.11b Effective working distance: 200 meters farthest indoor and 830 meters farthest outdoor(varies due to the environment) Frequency range :2.4-2 .4835 Ghz Support the network protocol: CSMA / CA with ACK Transfer method: Direct Sequence Spread Spectrum (DSSS) Sensitivity: 54:-68dBm @ 10% PER, 11M:-85dBm @ 8% PER, 6M:-88dBm @ 10% PER, 1M:-90dBm @ 8% PER, 256K:-105dBm @ 8% PER (typical value) Antenna: bulid in antenna Modulation: BPSK, QPSK, CCK and OFDM (BPSK/QPSK/16-QAM/64-QAM) Interface: USB Security features: Support 64/128/152 bit WEP data encryption, support for WPA, IEEE 802.1X, TKIP, AES encryption and security mechanisms, etc. Chip:Rtl8188 Support System:Win2000 WINxp vistaX64 vistaX86 win7x64 win7x86 Other technical parameters: the provision of two working modes: centralized control type (Infrastructure) and Peer-to-Peer (Ad-Hoc) Characteristics: launch 150/54/48/36/24/18/12/9/6/11/5.5/2/1Mbps