TP-LINK TL-WN851N Wireless-N PCI Adapter

Product code: 892101

  • Order within for next day delivery
  • FREE delivery available
  • Available to Order Online & Collect in Store from next day  

Product features

  • 300 mbps
  • 802.11n
  • With built-in antenna
Product information
Give yourself the best in flexible internet connections with the TP-Link TL-WN851N Wireless-N PCI Adapter.

Easy peasy adapter and pie

To take advantage of high-speed wireless internet connectivity, just plug the TP-Link Wireless-N PCI Adapter straight into one of your computer's PCI ports, and free your desk of wire clutter in the process.

Big range

The TP-Link TL-WN851N Wireless-N PCI Adapter gives you a much-extended wireless range, the 2 external 3dBi fixed omnidirectional antennae improving the connection and resulting in fewer dead spots.

Now you have the freedom to move about without disturbing your connection.

Flexible connection and security

The TP-Link TL-WN851N uses 802.11n technology but is backwards-compatible with the 802.11 b/g standard, so you're still ensured fast, uncomplicated internet, delivered to you with excellent transfer speeds up to 300Mbps.

You're also ensured of great online privacy and security with the inclusion of 152-bit encryption and remote management tools.

Get yourself the TP-Link TL-WN851N Wireless-N PCI Adapter for a totally compact, user-friendly home networking option!

Technical specifications for TP-LINK TL-WN851N Wireless-N PCI Adapter

Technical specifications
Interface PCI
Network standards 802.11n: Up to 300Mbps (dynamic)
802.11g: Up to 54Mbps (dynamic)
802.11b: Up to 11Mbps (dynamic)
Network Interface IEEE 802.11n, IEEE 802.11g, IEEE 802.11b, CSMA/CA with ACK
Level indicators (LED) Power, system, wireless, internet, LAN 1-4
Dimensions 121 x 133 x 22 mm (L x W x D)
Weight 96 g
Content Resource CD、
Quick Installation Guide、
2 Fixed Omni Directional Antennae
Power supply unit
Customer reviews

TP-LINK TL-WN851N Wireless-N PCI Adapter reviews verified by Reevoo

46 reviews

Reviews from: Sort by:
(8.9 out of 10)
How easy to set-up
Value for money
Overall rating
Scores 8.9 out of 10 based on 46 reviews
Show more score details
(10 out of 10)


Northampton GB
Good bit of kit
Reviewer left no comment
Confirmed purchase: 24 August 2015
Published on: 24 September 2015
(10 out of 10)


Saxtead GB Gaming PC build.
I am on the other side of the house and a floor up from my router, and I get a very strong connection. Never lost connection with it.
The software I ended up deleting, and just used the drivers as it lost connection with it installed. Simple and easy fix, so it hasn't effected my review.
Confirmed purchase: 13 May 2015
Published on: 13 June 2015
(2 out of 10)


Reviewer left no comment
Keeps disconnecting and has low signal when only 2 meters away from router in the same room.

Do not buy.
Confirmed purchase: 30 March 2015
Published on: 27 April 2015
(10 out of 10)


Thetford GB
Very easy to fit and connect. Good price and value
Why does such a large store take 24 hours to get it in stock?
Confirmed purchase: 17 March 2015
Published on: 14 April 2015
(6 out of 10)


Hampshire GB
Easy to fit
Wireless is so flaky I changed to Powerline more reliable
Confirmed purchase: 09 March 2015
Published on: 06 April 2015
Delivery, Order & Collect and Services

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Same day delivery (£9.99): exclusively for selected addresses in Greater London. Simply place your order before 9:30am Monday-Friday and receive it that evening between 6:30pm and 10:30pm.

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Pay and Collect

If your local store doesn't have this product in stock, you can pay online and then have it delivered to store for collection.

Your item will be sent from our warehouse to the store for free and will be available to collect from 5pm on your chosen day of delivery, including next day. Your product will be available to collect for 28 days after delivery.

  • Order within for next day delivery
  • FREE delivery available
  • Available to Order Online & Collect in Store from next day  
TP-LINK TL-WN851N Wireless-N PCI Adapter