[Digital Electronics] - [Network equipment]

TP-Link TL-WN821N 300M USB Wireless LAN Desktop PC wifi Receiver Transmitter

TP-Link TL-WN821N 300M USB Wireless LAN Desktop PC wifi Receiver Transmitter
Product code: 2290900030
Unit price 8.4$
Sold quantity 26642
Available stock 271

Product parameters:

  • Product Name: TP-LINK TL-WN821N
  • Brand: TP-Link / Punt technology
  • Model: TL-WN821N
  • Model: TL-WN821N
  • Condition: New
  • Wireless: Wireless
  • NIC socket: USB
  • Transmission speed: 300Mbps
  • Applicable network type: Fast Ethernet
  • Service: Genius

Family Package

  • TP-Link TL-WN821N 300M USB Wireless LAN Desktop PC wifi Receiver Transmitter
    Price: ¥ 51.9
    With price: ¥ 51.00
  • Price: ¥ 13
    With price: ¥ 13.00
  • Price: ¥ 99
    With price: ¥ 97.00
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With up to purchase minus 2.90yuan
Package price: ¥ 161.00

Plus cleaning kit

  • TP-Link TL-WN821N 300M USB Wireless LAN Desktop PC wifi Receiver Transmitter
    Price: ¥ 51.9
    With price: ¥ 51.00
  • Price: ¥ 9.9
    With price: ¥ 7.00
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With up to purchase minus 3.80yuan
Package price: ¥ 58.00

Power Cat Recommended

  • TP-Link TL-WN821N 300M USB wireless network card desktop computer wifi receiver transmitter
    Price: ¥ 51.9
    Match Price: ¥ 51.00
  • Price: ¥ 315
    Match Price: ¥ 309.00
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With the purchase of up to less 6.90yuan
Package price: ¥ 360.00

This card is a wireless USB card, not 3G wireless network card, please look at the pro to buy Oh! For desktop or wireless card damage to the laptop to receive wifi wireless signal design, through the computer's USB interface to receive wireless network . Need to have their own broadband, a wireless router, and the location of the computer has its own wireless router with a stable wireless signal available Oh do not have rub network function.

Another function of this network card is to simulate AP, wifi transmitter or called 'carry wifi'. In the absence of restrictions on network sharing, through the wired local computer connected to the Internet, install the client software, set the cable can be converted into wifi, this feature Mainly for emergency use, do not recommend long-term use.In addition, the campus network, the unit network, Internet cafes and other use of dedicated client, limiting network sharing, limiting the application of the installation of the computer's wired network can not be shared, the network card radio function is not available. NIC quality problems, is the network itself.

300M wireless USB card

300M wireless USB card

Video is 821 and 823 contrast, in addition to the size of the shape and chip distinction, other features and performance is almost oh. This link is 821n baby.


11N wireless technology, 300Mbps wireless rate

    • TL-WN821N adopts MIMO architecture and CCA idle channel detection technology to improve wireless performance, effectively solve the blind spot problem caused by partition wall, long distance, etc., enhance wireless signal stability, provide better wireless performance and superior Connection stability.
  • QSS fast security settings, wireless network security, set up fast
  • Support for analog AP (Soft AP) function, access to the Internet computer can be used as a wireless AP, for mobile phones, Pad Internet
    • Operating system support

  • Windows XP / XP 64

    Windows 7 / Windows 7 64

    Windows 8 / Windows8 64

    Windows 8.1 / Windows 8.1 64

    Windows 10 / Windows 10 64

Strong wireless performance
TL-WN821N uses 11N wireless technology, wireless transmission rate up to 300Mbps compared to the traditional 54Mbps 11G products and 150M products, with high wireless bandwidth, so that the LAN data transmission efficiency, can effectively reduce the network delay, voice and video, Online games, online on demand smooth.
TL-WN821N uses 2 × 2 MIMO (Multiple Input Multiple Output) architecture, built-in two smart antennas, multiple signal transmission and reception, can greatly enhance its wireless reception capability, and enhance the stability of wireless signals.
TL-WN821N also uses the CCA (Clear Channel Assessment) empty channel detection technology, in the detection of the surrounding wireless signal interference, can automatically adjust the bandwidth mode, to avoid channel interference, so that wireless signal stability.When the interference disappears, But also automatically bundled idle channel, take full advantage of channel bundling advantages, enhance wireless performance.
All-round security
TL-WN821N support WPA-PSK / WPA2-PSK, WPA / WPA2 security mechanism and WEP encryption, all-round protection of the wireless network is not violated and misappropriated.
The TL-WN821N has a hardware QSS fast security setting that complies with the WPS standard. When using a wireless router with QSS or WPS function, simply press the QSS Fast Security button on the wireless router and network card, or enter the router on the computer PIN code, you can complete the WPA2 wireless secure connection than the traditional WEP encryption, and do not need to remember the complicated password.

Analog AP function, access through wired local connection can access the Internet and no restrictions on network sharing, no restrictions on the application of the installation of the computer can be used as a wireless AP for mobile phones, Pad Internet

The TL-WN821N plugged into the Internet through the local network connection, and not limited to the network can share the Internet computer, open the Soft AP function, then it is equivalent to a wireless AP, you can support other notebooks, mobile phones, Pad, etc. Wireless internet access.

High-speed enjoy TP-Link TL-WN821N wireless card (the following evaluation from Zhongguancun Online)

TP-Link TL-WN821N Wireless Card Overview

TP-LINK's TL-WN821N wireless network card uses a new design, which supports IEEE 802.11n standard and uses USB interface, to meet the network video, voice and other high-bandwidth application requirements. Is the market in the relatively high cost 11n wireless card.

TL-WN821N uses a new black and white appearance, the front is white, the back of the black, material selection is very particular about, feel very smooth, the overall fine workmanship, looks very beautiful and its dimensions

  • 69mm x 21mm x 10mm

TL-WN821N in line with IEEE 802.11n, IEEE 802.11g, IEEE 802.11b standard, wireless transmission rate of 300M. Can be well compatible with 11g, 11b equipment, and through the Centrino compatibility test, Suitable for use with desktop and notebook.


Hardware Specifications Wireless Features Software features
USB 2.0
Built-in two smart antennas
69mm x 21mm x 10mm
Use the environment
Working temperature: 0 ℃ ~ 40 ℃
Storage temperature: -40 ℃ ~ 70 ℃
Humidity: 10% to 90% RH No condensation
Package Contents
300M wireless USB card TL-WN821N
Drive the disc
User manual
Warranty Card
Explanation of toxic and hazardous substances

Follow the standard
IEEE 802.11n; IEEE 802.11g; IEEE 802.11b
Transmission rate
11b: 1/2 / 5.5 / 11Mbps
11g: 6/9/12/18/24/36/48 / 54Mbps
11n: up to 300Mbps
Frequency Range
2.4 ~ 2.4835GHz
Working channel
1 ~ 13
Transmit power
20dBm (large value)
Security features
QSS fast security settings
Other functions
Analog AP function
Operating system support
Windows XP / XP 64
Windows 7 / Windows 7 64
Windows 8 / Windows8 64

  • Win10

Note: For better system compatibility, we recommend that you install a new system upgrade patch