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TP-Link TL-WN821N N300 USB Wireless WiFi network Adapter for pc, Support Windows/Linux/Mac OS

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2,312 ratings

| 33 answered questions

$29.00

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Brand	TP-Link
Hardware Interface	USB 2.0
Operating System	Mac OS X 10.7 Lion, Linux, Windows Vista, Windows XP, Windows 7
Compatible Devices	Desktop
Item Dimensions LxWxH	0.83 x 2.71 x 0.37 inches
Data Link Protocol	IEEE 802.11b, IEEE 802.11g, IEEE 802.11n
Data Transfer Rate	300 Megabytes Per Second
Item Weight	0.51 Pounds

About this item

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USB WiFi Adapter: 802.11N N300 speed allows for great video streaming and internet calling experience
Increased Range: Dual internal antennas deliver enhanced reception and transmission performance
Secure WiFi: Easy one-touch wireless security encryption with the Quick Security Setup button
Industry Leading Support: 2-YEAR WARRANTY AND FREE 24/7 TECHNICAL SUPPORT; If you have any problems when using, just contact us and we will Give You A Replacement or Refund Unconditionally; JD Power Ranked TP-Link "Highest in Customer Satisfaction for Wireless Routers in 2017"
Compatibility: Windows (XP/7/8/8.1/10) - Mac OS (10.6~10.11) - Linux Kernal (2.6.18~3.10.10)

Consider this Amazon's Choice product that delivers quickly

Amazon's Choice

USB 3.0 WiFi Adapter AC1300Mbps for PC, Wireless Network Adapter Dual Band 5GHz 2.4GHz for Mac OS 10.6-10.15,Windows XP,10,8.1,7,Vista

(2129)

$22.50

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		USB 3.0 WiFi Adapter AC1300Mbps for PC, Wireless Network Adapter Dual Band 5GHz 2.4GHz for Mac OS 10.6-10.15,Windows XP,10,8.1,7,Vista	TP-Link USB WiFi Adapter for Desktop PC, AC1300Mbps USB 3.0 WiFi Dual Band Network Adapter with 2.4GHz/5GHz High Gain Antenna(Archer T3U Plus), MU-MIMO, Windows 11/10/8.1/8/7/XP, Mac OS 10.9-10.15	TP-Link USB WiFi Adapter, AC1300Mbps Dual Band 5dBi High Gain Antenna 2.4GHz/ 5GHz Wireless Network Adapter for Desktop PC (Archer T4U Plus)- Supports Windows 11/10/8.1/8/7, Mac OS 10.9 - 10.14	TP-Link AC1300 USB WiFi Adapter(Archer T3U)- 2.4G/5G Dual Band Wireless Network Adapter for PC Desktop, MU-MIMO WiFi Dongle, USB 3.0, Supports Windows 11, 10, 8.1, 8, 7, XP/Mac OS X 10.9-10.14

Customer Rating	(2312)	(2129)	(7564)	(2838)	(8785)
Price	$29.00	$22.50	$19.99	$24.99	$17.99
Sold By	WifiMarket	EDUP LOVE	Amazon.com	Amazon.com	Amazon.com
Item Dimensions	0.83 x 2.71 x 0.37 inches	4.72 x 3.54 x 0.79 inches	2.28 x 0.71 x 6.83 inches	3.31 x 6.15 x 0.76 inches	1.59 x 0.78 x 0.41 inches

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What's in the box

Package Contents Wireless AdapterOne USB extension cableResource CDQuick Installation Guide

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Product information

Product Dimensions

0.83 x 2.71 x 0.37 inches

Item Weight

8.1 ounces

ASIN

B002T4D3M2

Item model number

TL-WN821N

Customer Reviews

2,312 ratings

4.2 out of 5 stars

Best Sellers Rank

#633 in USB Computer Network Adapters

Is Discontinued By Manufacturer

Date First Available

June 13, 2009

Manufacturer

TP-Link

Language

English

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Product Description

Wireless N USB Adapter TL-WN821N allows you to connect a desktop or notebook computer to a wireless network and access high-speed Internet connection. Comply with IEEE 802.11n, they provide wireless speed up to 300Mbps, which is beneficial for the online gaming or even HD video streaming. Wireless N - Speed & Range. With MIMO (multiple input, multiple output antennas) technology, it shows more excellent abilities of mitigating data loss over long distances and through obstacles in a small office or a large apartment, even in a steel-and-concrete building. CCA Technology - Stable Wireless Signals. Clear Channel Assessment (CCA) automatically avoids channel conflicts using its clear channel selection feature and fully realizes the advantages of channel binding, greatly enhanced the wireless performance. WPA/WPA2 Encryptions - Advanced Security. As for the security of WI-FI connection, WEP encryption has been no longer the strongest and safest guards for outside intrusions. TL-WN821N provides WPA/WPA2 encryptions that are created by the WI-FI Alliance industry group, promoting interpretabilities and security for WLAN, which could effectively and efficiently protect the wireless network. One Button Security Setup. Compatible with WI-FI Protected Setup (WPS), TL-WN821N features Quick Security Setup that allows users to almost instantly setup their security simply by pressing the "QSS" button automatically establishing a WPA2 secure connection, which is more security compared with WEP encryptions. Not only is this faster than normal secure setups but more convenient in that you don't need to remember a password! Bundled CD for Easy Operation. TL-WN821N comes with a CD with utility that helps you complete the software installation and wireless network settings, including security configurations and wireless connection, which is convenient for users, even for novice users. Frequency Range: 2.400-2.4835GHz; Interface Available: USB 2.0; System Requirement: Windows 8.1/8(32/64bits) Windows 7(32/64bits) Windows Vista(32/64bits) Windows XP(32/64bits) , Mac OS X 10.7~10.10 Linux; Wireless Standards: IEEE 802.11n IEEE 802.11g IEEE 802.11b

What's in the box

Package Contents Wireless AdapterOne USB extension cableResource CDQuick Installation Guide

Customer reviews

5 star		60%
4 star		19%
3 star		8%
2 star		5%
1 star		9%

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Top reviews from the United States

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kangTop Contributor: Photography

This is version 5, and its not nearly as good as version 1.

Reviewed in the United States on November 30, 2016

Verified Purchase

Sadly all top reviews are for a rather different product from 2010. Same name, same look, but everything inside is different - mainly, the Wifi chipset.

The current version is v5 and uses a Realtek chipset (8192eu), which is okay but is not nearly as good as the original Atheros chipset of the v1.

Not to mention support on Linux for example, is terrible (only certain kernels supported, patch and code yourself for support of recent kernels, does not use standard kernel wifi stack)

Of course, nowhere it is specified on the Amazon page that this is version 5, so it's mostly all about luck or how much Googlin'g you've done before buying.

13 people found this helpful

Helpful

Carmin Politano

Debian Ready

Reviewed in the United States on April 6, 2020

Verified Purchase

Straight Debian open source only. This is the fourth wifi card I purchased. This one works far better than the proprietary crap. Receives signals that others could not imagine. Worked without any proprietary driver install.

Any wireless manager might work, but this is how I did it because I use openbox (no desktop):

$ sudo apt-get install iw wpasupplicant wicd
$ sudo apt-get purge network-manager connman # wicd, network-manager and connman are mutually exclusive
$ sudo /etc/init.d/dbus reload
$ sudo /etc/init.d/wicd start
$ wicd-client -n # GUI setup

One person found this helpful

Helpful

Amazon Customer

No good for Linux

Reviewed in the United States on April 7, 2017

Verified Purchase

Bought this because it advertises to support Linux however the only driver they provide is for an old version of the Linux kernel. I spent hours trying to compile the driver with no luck. I contacted TP-Link directly and they said I'd need a custom driver. I'm not much of a coder/programmer so I opted for a refund through Amazon. Thank goodness for Amazon's great customer service. They promptly refunded me after I explained my conundrum without having to return this pos. Don't buy TP-Link if you intend to use it on an up to date Linux distro. I asked TP-Link if they had another product that would support my kernel and they said that is the only driver they provide. So they're pretty much guilty of false advertising imo. Their driver only works on the Debian 3.1 kernel so unless you feel like customizing this driver in C# I'd steer away from this crap. I'm getting myself a wifi pineapple as of now. A highly superior product.

2 people found this helpful

Helpful

Talon8Ya

Good upgrade from your b or g on-board wireless.

Reviewed in the United States on July 20, 2013

Verified Purchase

I purchased two of these one to upgrade the wireless on my Compaq Laptop and the other to add WiFi to my wife's desktop.

My laptop has Win 7, installation was simple I had downloaded the newest driver first from TP-Links website and installed without a hitch.

It typically connects with a strong signal throughout the house and at 70 feet away outside still maintains a strong connection typically over 1mb file transfer speeds even at that distance.
With my laptop I did find one problem.
I have a Gear Head wireless mouse I use at times instead of the touch pad. The mouse runs on a 2.4ghz frequency which can at times stop the wireless card dead in its tracks. That is more of an issue with the mouse than the card, After making sure in the router setup that I had it on a separate channel there was no more interference.

My wife's desktop has Windows XP. I downloaded the most up to date driver first like with the laptop.
I was replacing the wireless b card she had been using. Due to placement in the house using a wired connection was not feasible.
Setup was simple and quick.
The connection is strong but for some reason on XP it can be very sluggish. Her system is a dual core intel with 4gb of ram and is quite speedy.
Most of the time it works fine but for some reason I have not been able to determine yet it will bog down be it web pages or files transfers . This did not happen with her old card and the new one is still faster but this is a mystery so far.

Overall an excellent USB WiFi card when used above Win XP.

Helpful

Neamhain

It's good, but there are a couple little things...

Reviewed in the United States on October 8, 2013

Verified Purchase

Okay, so I bought this to use with my desktop. I needed something that was NOT extremely expensive, and that would work with my compute. So after looking at multiple different Wi-Fi adapters, lots of researching and a lengthy conversation with my Dad, I picked this one.(It was on the cheaper side, it had all the tech requirements, and it had a hefty amount of 5 star reviews.)

It got here earlier then I expected, (I was expecting a week, got it in 3 days!) was super easy to install, and it receives the signal from my router loud and clear. (A solid 5 bar!)

I would give it 5 stars, except for one little irritating thing it does. It keeps randomly disconnecting me! It'll be fine for hours at a time, then suddenly it keeps disconnecting, over and over, for a 5 or 10 minute (or so) spurts. Then just as suddenly, it's completely fine again!

I have no idea WHY it keeps going that, but whatever. It's a little annoying, but it's manageable. /shrugs/

One person found this helpful

Helpful

S. K. Howell

Worked well for me

Reviewed in the United States on September 8, 2016

Verified Purchase

Easy install, good performance. I picked up this adapter after the Dell Inspiron internal WIFI card appeared to be having problems (very low throughput compared to a wired connection, unstable connections to smartphone via WIFI) as part of the diagnostic process. It worked better than the Inspiron internal did even before the appearance of problems (144 Mbps connection vs 72 Mbps). Performance of the TP-Link is on par with the wired connection when doing Internet performance measurements on this machine. The Windows 10 machine did not have a driver available for the N300 USB adapter, but pointing the driver install dialog to the provided CD was all that was necessary.

One person found this helpful

Helpful

WH7QQ

Do Not Order this obsolete junk!

Reviewed in the United States on November 18, 2019

Verified Purchase

This is an obsolete model...DO NOT BUY!!! It is not plug and play with either linux or raspbian linux and requires a non-supported and complicated installation to partially work. Biggest mistake I have made in years and the last Tp-Link product I will ever buy.

Helpful

Top reviews from other countries

Divya Kothari

Great Design, Build, Connectivity Range, Packaging and other features but no linux support since v2

Reviewed in India on November 11, 2018

Verified Purchase

(Pictures attached)

Size/Design: ★ ★ ★ ★ ★
Build Quality: ★ ★ ★ ★ ★
Packaging: ★ ★ ★ ★ ★
Software: ★ ★ ★ ★
Speed: ★ ★ ★ ★ ★
Connectivity: ★ ★ ★ ★ ★
Experience: ★ ★ ★ ★ ★
Warranty: ★ ★ ★ ★ ★

Size and Design:
The best part about this is that it is very compact in size and very sober and elegant in design. This is a big plus as it is easy plug in and use, add to it the good sober design.

Build Quality:
The build quality is undoubtedly superb. Just no qualms about that, at all. When held, it doesnt give off that cheap and flimsy product-like feeling. It is good sturdy with its build quality.

Packaging:
This part is also a big plus as the item was well cushioned and packaged with all the necessary items that ensured that no damage could have been caused to the product during transportation. This ensures that I as a customer have received something not damaged internally already.

Software:
This is actually good but not great part with the product.
The good part is that a CD has been provided with it along with a manual.
The not great part is that NO LINUX SUPPORT has been given from Version 2 onwards. This is bad, really.

Speed:
It easily supports net speeds upto 300 Mbps. Practically speaking, I have tested it at my home and it easily supports net speed of over 100-150 Mbps without a sigh.
On testing I found that it did connect to 5GHz network, without any issue.

Connectivity:
Please mark its not feet its metres. Multiply metres x 3 to get the distance in feet.
It easily connects to my laptop or phone from 7 metres across one room. So thats 21 feet. I mean even our old bluetooth used to connect to about 15 ft.
So 20-25 feet is not at all an issue with this. This is the big plus I found with the product.

Experience:
From this point of view, so far except the linux non-compatibility issue, I found no other flaws with this product.
So overall its a great product.

Warranty:
Its 3 years so I am assured that atleast for 3 years I am tension-free and not just 1 year, contrary to most electronic items today that only provide 1 year warranty with their items.

374 people found this helpful

Intrepid Adventurer

Fast, reliable WiFi that works straight away in Ubuntu 14.04 LTS

Reviewed in the United Kingdom on December 11, 2015

Verified Purchase

I've only tried this out in Ubuntu but there is no reason why it won't work in Windows. In Ubuntu it is fast, reliable and as far as I know works straight away in Ubuntu 14.04 LTS. I used it both on an old PC without WiFi and then on a new laptop to get the necessary linux driver for the Laptop's built-in WiFi.
What I did to make it work straight away was:
Put it into a USB port before installing Ubuntu (I use 14.04 LTS) and then connect to your WiFi network as soon as it appears at the beginning of installation. Then tick Download Updates While Installing when it appears during installation. If like me you have a laptop then don't forget to connect its charger whilst installing. Once Ubuntu is installed your WiFi should be fine.
If you are using Ubuntu 14.04 LTS and your internet is non-working then this might fix it. Disconnect the WiFi and reconnect then type (or right-click copy/paste) the following one line at a time in a terminal (CTRL+ALT+T) press enter each time and type password once:
sudo apt-get install git
sudo apt-get install --reinstall linux-headers-$(uname -r) linux-headers-generic build-essential dkms git
git clone https://github.com/pvaret/rtl8192cu-fixes.git
sudo dkms add ./rtl8192cu-fixes
sudo dkms install 8192cu/1.10
sudo depmod -a
echo "blacklist rtl8192cu" | sudo tee -a /etc/modprobe.d/blacklist.conf
Now you should have decent speed WiFi once you have rebooted your PC/Laptop (sudo reboot). Make sure you save any open files first.
If it's still a bit slow type or copy/paste the following:
sudo cp ./rtl8192cu-fixes/8192cu-disable-power-management.conf /etc/modprobe.d/
Press enter, type password then enter again, reboot and all should be well.

As with all Ubuntu don't forget to firewall it once you are logged in.
In case you don't know how to:
Press CTRL+ ALT +T then the terminal will pop up. Type sudo ufw enable then press enter, type your password and press enter again.
Your PC/Laptop will then be firewalled.

Windows no doubt needs a driver but there is a disc included and instuctions. I haven't tried it in Windows but I'm sure if the driver isn't on the disc you can download it from TP-Link's website. The adapter also comes with a USB extension cable so the adapter doesn't have to be in the back of a PC. This adapter is a fabulous affordable and easy way to add fast WiFi to any Laptop or PC :)

Gopal

Poor signal detection on Ubuntu machine

Reviewed in India on September 5, 2018

Verified Purchase

Bought tp-link Wireless N USB Adapter . Since it is amazone's choice .
Noticed that the tp-link Wireless N USB detection is weak detecting the wifi signal,
Ordered a new tp-link wifi . Still surprised to see tp-link Wireless N USB Adapter is not able to detect tp-link wifi.
Then i ordered tp-link extender thinking that the distance is more then 40 feet.
TP-Link wireless adapter is not still working as expected.
Since this exercise took more then 3 month , now i can't return my TP-Link wireless adapter

22 people found this helpful

Shashii Das

Absolute fabulous product

Reviewed in India on August 22, 2020

Verified Purchase

Absolute fabulous product. This review is being written while connected to TP-Link TL-WN821N 300Mbps Wireless N USB Adapter. Easy to install and setup. Just insert CD provided in CD drive and install software. Please note that USB-Wi-Fi adapter needs to be plugged in before installation. Amazing speeds as connected thru mobile hotspot. Same speed like in mobile, no variance. Quality packaging and affordable. Good product by TP-Link.

10 people found this helpful

Ajith

Driver Headache

Reviewed in India on June 22, 2021

Verified Purchase

*MASSIVE WARNING FOR ANYONE LOOKING TO BUY THIS PRODUCT*
i rated it 3 stars only because of the trouble i had to go through to get the correct drivers installed
With the wrong drivers (given in the CD-they're older) i got only a 0.5mbps connection on a 50mbps network.
I then used Windows' update driver feature from device manager and still no luck with the udpated driver.
After a lot of searching around i went to the tp link site and then on checking the label on the network adapter it said US/V6
This had separate drivers on the site which was not installed by the provided CD or Windows.(EU drivers gave slow speeds as well)
After installing these drivers, the device worked as intended.
This was the case with my desktop computer, but when i tried to configure the adapter on my laptop (also Windows 10 x64) it worked with the drivers that Windows installed itself (plug and play basically).
Although these drivers were different from the one on the site(there was no 2016 version on the site) , they still worked. On the laptop the windows update installed a 2016 driver (which i was not able to install on my PC for some reason)
While the latest version from the site was a 2019 version.
So make sure to check the region (US/EU) of the adapter you recieve and install appropriate drivers.

This may not be the case for everyone as can be seen with other reviews, but if you encounter extremely slow speeds, try installing the correct drivers from the tplink site.

Additionally, it does not connect through 5g channel. Only 2.4Ghz is detected.

2 people found this helpful

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TP-Link TL-WN821N N300 USB Wireless WiFi network Adapter for pc, Support Windows/Linux/Mac OS

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About this item

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