If you want usb wifi adapter for desktop then I would recommend Edimax EW-7811Un 150Mbps 11n Wireless Adapter for Desktop instead of LINKSYS - WUSB6100M-EU. It is compatible with Windows, Mac,...

I recommend you to use USB Wifi adapter. When you upgrade your windows to windows10. Internet connectivity issues occurs. So, you have better option is to use Windows 10 compatible USB Wifi adapters....

I think you have not choose perfect USB Wifi adapter for gaming. To choose perfect adapter there are few things that you have to keep in mind.
Check out below info graphic for that.
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