TP-Link TL-WN821NC (WLAN, 300 Mbps, USB + Docking Station)

Network 802.11n, TP-Link, USB, WiFi

TP-Link TL-WN821NC (WLAN, 300 Mbps, USB + Docking Station)
Linux compatibility:
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Price: CDN$ 51.00 (on stock)
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TP-Link TL-WN821NC 
Minimum: CDN$ 23.05 
Maximum: CDN$ 100.91  
Updated: 23/02/2016 21:28

Review of Linux Compatibility

The TP-Link TL-WN821NC bases on the Atheros chipsets AR7010 and AR9287 and support transmission up to 300Mbps according to the IEEE 802.11n standard.
The stick is recognized by the kernel in the following way:

Bus 001 Device 015: ID 0cf3:7015 Atheros Communications, Inc. TP-Link TL-WN821N v3 802.11n [Atheros AR7010+AR9287]

and is fully supported by Linux vie the kernel module ath9k_htc. This driver is included in the Linux standard kernel since version 2.6.30.

A firmware file is necessary to initiate the TL-WN821NC. This file is part of the Atheros Firmware-Package and can be installed in Debian-based distributions in the following way:

apt-get update
apt-get install firmware-atheros

The automatic initialization of the TL-WN821NC can be seen in the kernel log:

usb 1-4: ath9k_htc: Transferred FW: htc_7010.fw, size: 72992
ath9k_htc 1-4:1.0: ath9k_htc: HTC initialized with 45 credits
ath9k_htc 1-4:1.0: ath9k_htc: FW Version: 1.3
ath: EEPROM regdomain: 0x809c
ath: EEPROM indicates we should expect a country code
ath: doing EEPROM country->regdmn map search
ath: country maps to regdmn code: 0x52
ath: Country alpha2 being used: CN
ath: Regpair used: 0x52
Registered led device: ath9k_htc-phy0
usb 1-4: ath9k_htc: USB layer initialized
usbcore: registered new interface driver ath9k_htc

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