GNU/Linux openSUSE NETGEAR WNA3100M N300 Setup – Step-by-step Guide
How to Install NETGEAR WNA3100M N300 Wireless Driver on openSUSE GNU/Linux – Step by step Tutorial.
And the Netgear WNA3100M N300 Dongle make use of the Realtek rtl8192CU Chipset.
Especially relevant, in case to check your Adapter Chipset see: How to Check Wireless Device ID on GNU/Linux.
Most noteworthy: the Realtek rtl8192CU openSUSE Linux Driver is already bundled in the Latest Linux Kernels.

Installing Realtek rtl8192cu Driver on openSUSE
How to Install Realtek rtl8192cu Wifi Driver on openSUSE Linux
Here openSUSE Realtek rtl8192cu Installation