I don't think it would support a mobile dongle designed for Windows - but a 3g mifi unit with its own battery is just as cheap, especially in exchange stores, can be unlocked for about £/$1-2.00 and worked flawlessly for my laptop and phone when I had limited phone data. 4g units are now getting cheaper, and you can switch carriers with the best allowance or look for 3 month data bundles. (I'm in the UK)