The Atheros AR9271 is used on a vast amount of laptop/notebook computers today, the advantage of such a device is the external antenna that allow much greater distance when communicating compared to that of a PCB antenna made to fit in a laptop. The AR9271 is also sold on Ebay and other sites under many different generic names, and they are very cheap to purchase sometime even delivered for under $10. Many time these devices will have drivers included on a CDROM, but due to the fact that CDROM drives are no longer being put in Laptop devices the driver can be hard to install. So below you can download the driver using your existing wireless connection.
The standard antenna is 3 dBi
Atheros AR9271 Wireless Network Adapter Drivers
File: 7bd5fb86958ee52bb8977083bc5281df.zip
e48906d69bd8c1f07f5cace44fb03685f85d29e2c1b9335dbb945a8038dd6c88
Atheros AR9271 Wireless Network Adapter Drivers
File: netgear_wna1100_usb_wireless_drv_win8beta.zip
0184f7398a46bfb1cd2a4ecc17d48a8703356773700525b00ddf3194df770203
Atheros AR9271 Wireless Network Adapter Drivers
File: atheros_AR7010_10.0.0.20-w8.zip
a0f6cc919a5404f0023ccc513387b0940e8f19b08689db3b4a0712b3508c2cac
Atheros AR9271 Wireless Network Adapter Drivers
File: Atheros_wifi_AR7010_9.2.0.19_win7.zip
6621c3b7aa861ac8261a5ab53a22bcf0c550808776a7a64cd77385a5ef533f28
Atheros AR9271 Wireless Network Adapter Drivers
File: tplink_wn722n_v40_usb_wireless_20131230.zip
0e412e2bf434a4c5a5e12d4ae38d3016e37aeb3bed93217c4e67770f4a0b698c
