This long-distance, dual band adapter lets you connect your desktop
computer or notebook computer to wireless networks with the link speed of up to
300Mbps. In addition, X.USB embedded with two RP-SMA connectors that allows
user to change antennas with their preferable type.

Specifications:
802.11a/b/g/n WiFi Dongle
300Mbps 2T2R Radio
Dual Band 5GHz and 2.4GHz
USB 2.0 interface
2 x R-SMA Antenna Connectors
Portable Pen Size
Atheros UB82 Chipset
Model: X-USB-3: 2 x 3dBi Antennas Included 

Requirements:
USB 2.0 port
Windows 32/64-bit XP/2000/Vista/7/10/11 & Linux