This is the driver for NETGEAR Nighthawk AC1900(A7000) WIFi USB adapter.
The kernal of you Linux system should not be higher than 4.4 otherwise you need to download Linux kernal 4.4 on website http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4-wily for kernal compatible with your computer. For example
$ wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4-wily/linux-headers-4.4.0-040400_4.4.0-040400.201601101930_all.deb
$ wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4-wily/linux-headers-4.4.0-040400-generic_4.4.0-040400.201601101930_amd64.deb
$ wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4-wily/linux-image-4.4.0-040400-generic_4.4.0-040400.201601101930_amd64.deb
$ cd your_download_path
$ sudo dpkg -i *deb
After this, you need to reboot and select the 4.4 kernal before entering your Linux system.
Open your terminal and run
$ git clone https://github.com/RichardYao1995/NETGEAR_Nighthawk_AC1900.git
$ cd NETGEAR_Nighthawk_AC1900
$ make
$ sudo make install