TP-Link TL-WN722N (100mW) AR9271 good for WiFi Password Recovery and can do Injection.
We only sell Version 1 with AR9271.
The Version 2 comes with RTL8188EUS and is not good for WiFi Password injection and recovery.
Leightweight Password Recovery AR9271
Best Stealth WiFi USB Adapter WPA WPA2 WPS Keys
Wireless standards IEEE802.11b/g:Data at speed up to 54Mbps
Product no.: TP-Link 722