TP-LINK TL-WN851N Wireless-N PCI Adapter

Product code: 892101

Product features

  • 300 mbps
  • 802.11n
  • With built-in antenna

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.

It's compatible with Windows 7 and older operating systems.

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 reevooReevoo

116 reviews

Reviews from:Sort by:
(8.5 out of 10)
How easy to set-up
Value for money
Overall rating
Scores 8.5 out of 10 based on 116 reviews
Show more score details
(10 out of 10)


Dumfries GB
Worked perfectly after easy installation of driver with supplied disc. Allowed me to install old Vista PC in a remote part of the house.
Confirmed purchase: 08 August 2017
Published on: 05 September 2017
(9 out of 10)


Bugle St austell GB
Good bit of kit works really well from my workshop which is about 12 metres away from house
Reviewer left no comment
Confirmed purchase: 10 June 2017
Published on: 08 July 2017
(1 out of 10)


Leicester GB
Reviewer left no comment
Could not install the software so it didn't work for me maybe a faulty product. I now have another wireless card same make but lower speed works no problem
Confirmed purchase: 15 February 2017
Published on: 20 March 2017
(10 out of 10)


Basingstoke GB
Works great easy to install and configure No Hassle
Reviewer left no comment
Confirmed purchase: 06 February 2017
Published on: 10 March 2017
(10 out of 10)


Southport GB Online retailing business entrepreneur
OS is Windows XP Home; HP Machine. Disconnect mains, pop lid, find slot, push card in, put lid back, switch on, drop cd driver in caddy, follow on-screen notes - job done. Just 12 minutes to install, and it connected first time.
Reviewer left no comment
Confirmed purchase: 27 April 2016
Published on: 30 May 2016
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If you find (excludes Amazon Marketplace),, Argos, Asda, John Lewis or Tesco has the same item at a cheaper price, we’ll match it. Even if their price includes a voucher offer, and even up to 7 days after you’ve bought from us.

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Sometimes you’ll want something even quicker than we can deliver. Or you can’t be in when our van or courier would arrive. That’s why we offer you the option to order online and collect in store.
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Reserve & Collect – reserve online for free and collect at a local store as soon as you like. Once reserved, your item’s held till closing time the next day, to be paid for when you collect.

Pay & Collect – pay online, and have the item sent, for free, from our warehouse to a local store for you to collect. Starting on the date the item arrives in store – which you choose in checkout – you have 28 days to collect it.

Your fastest way to order online for collection is to use our ‘Availability Checker’ feature:

  1. Enter a town or postcode in the box on the product page for an item you’ve selected
  2. Click on the magnifying glass
  3. Review the collection options local to you – just click on any one to add it to your basket

Creation - your plan Flexible credit you control

To spread the cost, pay by Your Plan, our uniquely flexible credit option. Available on all orders £99 and over, this lets you:

  • Choose the payment term that suits you
  • Choose to pay nothing for the first 6 months, 19.9% APR representative
  • No deposit to pay and choose to pay it off early at no extra cost
  • Plus once you've opened an account, you can use it to spend again in the future on anything £99 and over
Learn more

How to apply
If you’re buying this item online, you can apply for credit at checkout. Or, if you’re reserving online, or shopping in store, apply here.

DSG Retail Limited acts as a credit broker and not a lender. Credit is provided by Creation Consumer Finance Ltd.
Both DSG Retail Ltd and Creation Consumer Finance Ltd are authorised and regulated by the Financial Conduct Authority.

TP-LINK TL-WN851N Wireless-N PCI Adapter