PCI/PCIe wireless card for Win 8.1

Ok I need a simple wireless card preferably under 20$ that will give me reliable connection that WORKS WITH WIN 8.1.  Most of the cards I have seen work on 8, but not 8.1.  There were some changes in the kernel from 8 to 8.1, so I want to be sure that the wireless card will work.  Also speed isn't a huge deal as my internet speed is 10mbs down, and I usually don't transfer files over LAN.