Review on TP-Link TL-WN821N N300 USB Wireless WiFi Network Adapter for PC, Compatible with Windows/Linux/Mac OS by Goro Shimada ᠌

I came across revision 4 on a Realtec rtl8192cu chip (earlier ones on Atheros). Tested on Windows 7 x64 and Ubuntu. Windows 7: Works great, connection speed is 300 Mb/s. Ubuntu 12.04 LTS: Works out of the box with built-in driver, shows 150 Mb/s connection speed, no problems. Ubuntu 132022 (latest at the moment): Works out of the box with a built-in driver, shows a connection speed of 150 Mb / s, but in fact the transfer speed is very low and unstable, about one and a half megabits. Failed to win.