| Connectivity technology | Wireless |
| Host interface | USB |
| Interface | WLAN |
| Maximum data transfer rate | 300 Mbit/s |
| Networking standards | IEEE 802.11b, IEEE 802.11g, IEEE 802.11n |
| Wi-Fi | Yes |
| Wi-Fi band | Single-band (2.4 GHz) |
| Frequency range | 2.4 - 2.4835 GHz |
| Top Wi-Fi standard | Wi-Fi 4 (802.11n) |
| Wi-Fi standards | 802.11b, 802.11g, Wi-Fi 4 (802.11n) |
| WLAN data transfer rates supported | 11,54,300 Mbit/s |
| Modulation | 16-QAM, 64-QAM, CCK, DBPSK, DQPSK, OFDM |
| Supported network protocols | CSMA/CA, ACK |
| Internal | No |
| Component for | PC/Laptop |
| Product colour | Black, White |
| Antenna | Yes |
| Antenna design | Internal |
| Transmitting power (CE) | 20 dBm |
| Transmitting power (FCC) | 20 dBm |
| WPS push button | Yes |
| Operating modes | Infrastructure mode |
| USB powered | Yes |
| Windows operating systems supported | Windows 7 Professional x64, Windows 8.1 Pro, Windows 10, Windows 7 Starter, Windows 8.1 Pro x64, Windows 10 Education, Windows 7 Starter x64, Windows 8.1 x64, Windows 10 Education x64, Windows 7 Ultimate, Windows 10 Enterprise, Windows 7 Ultimate x64, Windows 10 Enterprise x64, Windows 7 x64, Windows 10 Home, Windows 8, Windows 10 Home x64, Windows 7, Windows 8 Enterprise, Windows 10 IOT Core, Windows 7 Enterprise, Windows 8 Enterprise x64, Windows XP, Windows 10 IoT Enterprise, Windows 7 Enterprise x64, Windows 8 Pro, Windows XP Home, Windows 10 Pro, Windows 7 Home Basic, Windows 8 Pro x64, Windows XP Home x64, Windows 10 Pro x64, Windows 7 Home Basic x64, Windows 8 x64, Windows XP Professional, Windows 10 x64, Windows 7 Home Premium, Windows 8.1, Windows XP Professional x64, Windows 7 Home Premium x64, Windows 8.1 Enterprise, Windows 7 Professional, Windows 8.1 Enterprise x64 |
| Mac operating systems supported | Mac OS X 10.15 Catalina |
| Linux operating systems supported | Yes |
| Operating temperature (T-T) | 0 - 40 °C |
| Storage temperature (T-T) | -40 - 70 °C |
| Operating relative humidity (H-H) | 10 - 90% |
| Storage relative humidity (H-H) | 5 - 95% |
| Sustainability compliance | Yes |
| Sustainability certificates | CE, Federal Communications Commission (FCC), RoHS |
| Width | 86 mm |
| Depth | 26 mm |
| Height | 12 mm |
| Package width | 148 mm |
| Package depth | 137 mm |
| Package height | 42 mm |
| Package weight | 150 g |
| Cables included | USB |
| Resource CD | Yes |
| Quick installation guide | Yes |
| Harmonized System (HS) code | 85176990 |
| Quick start guide | Yes |
| Description |
| TP-Link TL-WN821N. Connectivity technology: Wireless, Host interface: USB, Interface: WLAN. Maximum data transfer rate: 300 Mbit/s, Top Wi-Fi standard: Wi-Fi 4 (802.11n), Wi-Fi band: Single-band (2.4 GHz). USB powered. Product colour: Black, White |
