Awus036H did not support MAC OS 10.8 and only supports 32 bit: AWUS036H works on 32-bit Mac only.
Alfa network driver free download - Intel Network Adapter Driver for Windows 7, Network:Intel (R) PRO/100 VE Network Connection Driver Version A02, WLan Driver 802.11n Rel. 4.80.28.7.zip, and many. Alfa network awus036nh wireless usb adapter free download - Belkin 54g Wireless USB Network Adapter, Belkin Wireless G USB Network Adapter, Realtek RTL8187B Wireless 802.11b/g 54Mbps USB 2.0.
If your Mac system is running on 32-bit CPU and you just upgraded the Mac OS to latest version then your AWUS036H is still compatible to it. However, if you just purchased a new Mac system with 64-bit CPU and built-in Mac OS 10.7 or later version then you need to boot your computer into 32-bit in order to run the application with device. And you can find the installation guide @ http://alfanetworkinc.blogspot.com/2011/08/install-awus036h-onto-mac-os-107.html
To identify whether your Mac system is running on 64-bit or not 036NHR work 10.8
Please use following hyperlink to download driver for AWUS036NHR for Mac system, https://www.asuswebstorage.com/navigate/a/#/s/C6445FED522B4C06B6661951B58959A2Y