I recommend this product: https://www.thinkpenguin.com/gnu-linux/penguin-wireless-n-usb-adapter-gnu-linux-tpe-n150usb
Your PC has two USB 3 ports and your USB 2 ports, so I think you're likely to have a USB port available for use.
You may want to also take a loot at the other networking products ThinkPenguin has, including their router.
https://www.thinkpenguin.com/catalog/wireless-networking-gnulinux
