Wifi adapter that would be compatible with windows 7 and 8.
there are alot, youd just have to check the product out before you buy it.
if your looking for a usb one (i have one and it works fine, and was cheap) the Linksys AE1200 from cisco works fine and was like 20 bucks at radio shack
I have the asus N-15 its PCIe and works great for me I got it for like $35
I'm not very fond of USB dongles for wireless, especially not the ones that do not have a tethered base station. Instead I prefer to recommend getting a PCI-e x1 card for it, most common brands are interchangeable in terms of quality (Belkin, Netgear, Linksys, D-Link, Buffalo, etc.) However, if you really don't want to bother remembering network passwords, it might be useful if your wireless router has a WPS button (Most Netgear ones do, and so do some Linksys) then you might want to get a WPS enabled adapter so you can just follow an on-screen prompt after you click "connect with WPS, please press the WPS button on your WPS enabled router to begin."
Asus makes some good adapters
Why do we need a thread for this? Most wireless cards work with both. Google can easily help you decide.
I brought this today to replace my busted adapter i got off ebay for 1.50 LOL...
I tested it versus wired, it has the exact same latency and speed results, well worth the money.