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The TL-WN821N network adapter is designed for installation in notebooks or computers. The adapter complies with 802.11n(Draft 2.0)/g/b standards. Compliance with the 802.11n standard allows for transmission speeds of up to 300Mbps - significantly faster than traditional 802.11g networks. Wireless data security is ensured by a number of encryption standards, including the most secure - WPA-AES (WPA2). The adapter features two internal antennas and utilizes 2T2R MIMO technology. It also uses CCA technology to help avoid channel conflicts.
Stable Speeds Bring Wonderful Surfing Experience
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. It provides up to 300Mbps speeds, which is ideal for smooth video streaming, voice streaming and online gaming.

Specifications
| TP-Link WN821N | |
| Hardware features | |
|---|---|
| Interface | USB 2.0 |
| Button | WPS Push Button |
| Dimensions ( W x D x H ) | 2.7x 0.8 x 0.4 in. (69 x 21 x 9.5mm) |
| Antenna | On-Board |
| Wireless features | |
| Wireless Standards | IEEE 802.11n, IEEE 802.11g, IEEE 802.11b |
| Frequency | 2,400-2,4835 GHz |
| Signal Rate | 11n: Up to 300Mbps(dynamic) 11g: Up to 54Mbps(dynamic) 11b: Up to 11Mbps(dynamic) |
| Reception Sensitivity | 270M: -62dBm@10% PER 130M: -65dBm@10% PER 108M: -68dBm@10% PER 54M: -68dBm@10% PER 11M: -85dBm@8% PER 6M: -88dBm@10% PER 1M: -90dBm@8% PER |
| Wireless Modes | Ad-Hoc / Infrastructure mode |
| Wireless Security | Support 64/128 bit WEP, WPA-PSK/WPA2-PSK |
| Modulation Technology | DBPSK, DQPSK, CCK, OFDM, 16-QAM, 64-QAM |
| Transmission Power | <20 dBm (EIRP) |
| Others | |
| Certification | CE, FCC, RoHS |
| Package Content | Wireless Adapter One USB extension cable Resource CD Quick Installation Guide |
| System Requirements | Windows 11/10/8.1/8/7, Linux |
| Environment | Operating Temperature: 0℃~40℃ (32℉~104℉) Storage Temperature: -40℃~70℃ (-40℉~158℉) Operating Humidity: 10%~90% non-condensing Storage Humidity: 5%~90% non-condensing |





