TP-Link TL-WN881ND N300 Wireless N PCI Express Adapter 2.4GHz (300Mbps) 802.11bgn 2x2dBi Detachable Omni Directional Antennas MIMO WPS Wireless N speed up to 300Mbps makes it ideal for video streaming, online gaming and Internet calls MIMO technology with stronger signal penetration strength, wider wireless coverage, providing better performance and stability Easily setup a highly secured wireless link with WPS™ (Wi-Fi Protected Setup) HARDWARE FEATURES Interface PCI Express(x1) Dimensions ( W x D x H ) 4.8 x 3.1 x 0.8in. (120.8 x 78.5 x 21.5mm) Antenna Type Detachable Omni Directional (RP-SMA) Antenna Gain 2dBi WIRELESS FEATURES Wireless Standards IEEE 802.11n, IEEE 802.11g, IEEE 802.11b Frequency 2.400-2.4835GHz Signal Rate 11n_ Up to 300Mbps(dynamic) 11g_ Up to 54Mbps(dynamic) 11b_ Up to 11Mbps(dynamic) Reception Sensitivity 270M_ -68dBm@10% PER 130M_ -68dBm@10% PER 108M_ -73dBm@10% PER 54M_ -73dBm@10% PER 11M_ -89dBm@8% PER 6M_ -87dBm@10% PER 1M_ -90dBm@8% PER Transmit Power <20dBm(EIRP) Wireless Modes Ad-Hoc / Infrastructure mode Wireless Security Support 64/128 bit WEP, WPA-PSK/WPA2-PSK Modulation Technology DBPSK, DQPSK, CCK, OFDM, 16-QAM, 64-QAM OTHERS Certification CE, FCC, RoHS Package Contents Wireless Adapter 2x Detachable Omni directional antenna Resource CD Quick Installation Guide System Requirements Windows 8(32/64bits), Windows 7(32/64bits), Windows Vista(32/64bits), Windows XP(32/64bits) Environment Operating Temperature_ 0℃~40℃ (32℉~104℉) Storage Temperature_ -40℃~70℃ (-40℉~158℉) Operating Humidity_ 10%~90% non-condensing Storage Humidity_ 5%~90% non-condensing