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
InterfacePCI 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 TypeDetachable Omni Directional (RP-SMA)
Antenna Gain2dBi
WIRELESS FEATURES
Wireless StandardsIEEE 802.11n, IEEE 802.11g, IEEE 802.11b
Frequency2.400-2.4835GHz
Signal Rate11n: Up to 300Mbps(dynamic)
11g: Up to 54Mbps(dynamic)
11b: Up to 11Mbps(dynamic)
Reception Sensitivity270M: -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 ModesAd-Hoc / Infrastructure mode
Wireless SecuritySupport 64/128 bit WEP, WPA-PSK/WPA2-PSK
Modulation TechnologyDBPSK, DQPSK, CCK, OFDM, 16-QAM, 64-QAM
OTHERS
CertificationCE, FCC, RoHS
Package ContentsWireless Adapter
2x Detachable Omni directional antenna
Resource CD
Quick Installation Guide
System RequirementsWindows 8(32/64bits), Windows 7(32/64bits), Windows Vista(32/64bits), Windows XP(32/64bits)
EnvironmentOperating Temperature: 0℃~40℃ (32℉~104℉)
Storage Temperature: -40℃~70℃ (-40℉~158℉)
Operating Humidity: 10%~90% non-condensing
Storage Humidity: 5%~90% non-condensing