Honestly, this is up to you. I would do the research on whatever you come across first before purchasing. That being said though, I have a ralink chipset, and it works wonders. If you are interested, I have the Alfa AWUS036NH, and is perfect for my needs. I picked it up for a good price online; There are many others out there, but I am only giving my two cents on what I think the best chipset I have used.