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300Mbps Wireless N PCI Adapter
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TP-Link 300Mbps Wireless N PCI Adapter

Condition: Brand new, USA Warranty
Wireless N PCI Adapter, Atheros, 2T2R, 2.4GHz, 802.11n Draft 2.0, 802.11g/b, with 2 detachable antennas

300Mbps Wireless N PCI Adapter


  • 300M Wireless transmission rate
  • MIMO technology with stronger signal penetration strength, wider wireless coverage, providing better performance and stability
  • CCA technology automatically avoids channel conflicts using its channel selection feature
  • Compatible with 11g and 11b equipment, Intel Centrino Compatibility tested

The TL-WN851N Wireless N PCI Adapter complies with IEEE 802.11n, IEEE 802.11g, and IEEE 802.11b standards. Wireless transmission rates can reach up to 300Mbps. The PCI card employs MIMO technology and has two external detachable omni directional antennas providing even better wireless performance, transmission rates, stability and coverage. At the same time, CCA technology automatically avoids channel conflicts using its channel selection feature. This product supports 64/128/152-bit WEP encryptions, as well as WPA/WPA2 and WPA-PSK/WPA2-PSK encryptions and mechanisms in addition to the adapter?s QSS (Quick Secure Setup) feature, allowing users to quickly and easily configure wireless security. This product can also simultaneously operate bandwidth intensive applications such as voice and video. Applications using a lot of bandwidth that are sensitive to interruptions such as voice and video applications are given priority in order to assure quality. It also works well with other 11g and 11n protocol wireless products.


  • Provides two methods of operation: Infrastructure and Ad-Hoc
  • Adopts MIMO technology for wireless rates of up to 300Mbps
  • Adopts CCA technology which automatically avoids channel conflicts using its channel selection feature
  • Quick Secure Setup, complies with WPS for worry free wireless security
  • Supports 64/128/152-bit WEP, complies with 128 bit WPA standard(TKIP/AES), supports MIC, IV Expansion, Shared Key Authentication, IEEE 802.1X
  • Simple Configuration and monitoring
  • Supports Roaming technology, guaranteeing efficient wireless connections.
  • Supports Windows 2000/XP/Vista OS

Software Specification
IEEE 802.11n, IEEE 802.11g, IEEE 802.11b, CSMA/CA with ACK
Wireless Signal Rates With Automatic Fallback
11n: Up to 300Mbps(dynamic)
11g: Up to 54Mbps(dynamic)
11b: Up to 11Mbps(dynamic)
Frequency Range
Wireless Transmit Power
20dBm(max. EIRP)
Modulation Type
Receiver Sensitivity
270M: -68dBm at 10% PER
130M: -68dBm at 10% PER
108M: -68dBm at 10% PER
54M: -68dBm at 10% PER
11M: -85dBm at 8% PER
6M: -88dBm at 10% PER
1M: -90dBm at 8% PER
64/128/152 bit WEP, WPA/WPA2, WPA-PSK/WPA2-PSK (TKIP/AES)
Support Operating System
Windows 7(32/64bits), Windows Vista(32/64bits), Windows XP(32/64bits), Windows 2000

Hardware Specification
32-bit PCI
Antenna Type
Omni Directional, Detachable
Antenna Power
2 x 2dBi
Operating temperature
0~40 degreesC (32~104 degrees)
Storage temperature
-40~70 degreesC (-40~158 degrees)
Relative humidity
10% ~ 90%, non condensation
Storage Humidity
5%~95% non-condensing
5.2 ? 4.8 ? 0.9 in. (133 ? 121 ? 22 mm)

Customer Reviews
TP-Link 300Mbps Wireless N PCI Adapter

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