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TP-LINK TL-WN821N

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Compact and mobile Wi-Fi-adapter with USB interface and support for high data transfer speed. It is positioned as an affordable device of the initial price category, which has quite relevant characteristics. Designed to include a desktop personal computer, HTPC-class system or laptop in a wireless Wi-Fi network. Despite its small size, the device is equipped with two internal antennas. A distinctive feature of the TP-LINK TL-WN821N Wi-Fi adapter is the support for MIMO technology, which provides multi-stream data transmission. In this case, the MIMO 2x2 mode is implemented, which, according to the manufacturer, allows you to get a throughput of up to 300 Mbps (with support for multi-streaming by the client device). Such a data transfer rate is quite enough for watching high-quality streami...ng 1080p video, comfortable surfing, network games, working with clients of file-sharing networks, web and cloud services, as well as transferring files of considerable size. The adapter is able to maintain a stable connection in a relatively weak Wi-Fi coverage, supports all the necessary security protocols. Thanks to proprietary software, it can easily turn into a software-organized access point. It comes with a 40 cm cable, which allows you to optimize the position of the adapter for the best signal.
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TP-LINK TL-WN821N
Wi-Fi:Wi-Fi 4 (N)
Antennas and signal:17 dBm, 1 antenna(s), non-removable

Compact and mobile Wi-Fi-adapter with USB interface and support for high data transfer speed. It is positioned as an affordable device of the initial price category, which has quite relevant characteristics. Designed to include a desktop personal computer, HTPC-class system or laptop in a wireless Wi-Fi network. Despite its small size, the device is equipped with two internal antennas.

A distinctive feature of the TP-LINK TL-WN821N Wi-Fi adapter is the support for MIMO technology, which provides multi-stream data transmission. In this case, the MIMO 2x2 mode is implemented, which, according to the manufacturer, allows you to get a throughput of up to 300 Mbps (with support for multi-streaming by the client device). Such a data transfer rate is quite enough for watching high-quality streaming 1080p video, comfortable surfing, network games, working with clients of file-sharing networks, web and cloud services, as well as transferring files of considerable size. The adapter is able to maintain a stable connection in a relatively weak Wi-Fi coverage, supports all the necessary security protocols. Thanks to proprietary software, it can easily turn into a software-organized access point. It comes with a 40 cm cable, which allows you to optimize the position of the adapter for the best signal.

All specifications
Specifications TL-WN821N
Colour
Product typeWi-Fi Adapter
InterfaceUSB-A 2.0
Data input (WAN-port)Wi-Fi
Wireless Wi-Fi connection
Wi-Fi standardsWi-Fi 3 (802.11g)
Wi-Fi 4 (802.11n)
Frequency band2.4GHz
Antenna and transmitter
Number of antennas1
Antenna typeinternal
2.4 GHz antennas1
Indoors range100 m
Outdoors range300 m
Transmitter power17 dBm
Security
Safety standardsWPA
WEP
WPA2
General
Dimensions93.5x26x11 mm
Official Websitetp-link.com
Added to E-CatalogMarch 2009
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
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Model overview based on user reviews  
The TP-LINK TL-WN821N Wi-Fi adapter is a compact and well-designed device that offers reliable performance and ease of installation. Users appreciate its good reception and speed, with many recommending it for purchase. The adapter includes a USB extension cable, which adds to its convenience. However, some users have reported that the device may stop working properly after about a year, experiencing intermittent internet connectivity issues. Despite this, the overall feedback highlights its elegant design and build quality, making it a popular choice for those seeking a budget-friendly Wi-Fi solution.
Pros

Cons

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1
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3
stopped working properly after a year
21 October 2021 
worked for a year. Now the Internet is either there or not. The Internet disappears every 5-10 minutes. you have to pull it out, wait at least 15 minutes, and stick it back in.
uSB extension cable included
normal price
stopped working properly after a year
Nikitause TP-LINK TL-WN821N more than year
I recommend buying.
29 April 2013 
Comfortable item, elegant design, I recommend buying it.
Compact, good design, very sensitive. There were no problems with the installation. I have a TL-WN821NC, which comes with a 1m extension cable.
not found.
Aleksandruse TP-LINK TL-WN821N month or more
great model, love it
22 February 2021 
RECOMMEND SPEED SUPER
speed build quality reception
i haven't discovered it yet
alex buruse TP-LINK TL-WN821N few months
3 out of 4 user review(s) shown
1 more user review(s)
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