Ivy Bridge laptops run DDR3 so the will ram will work.. Unless your running a old laptop from 2007 or before.
USB 3.0 has a build-in backwards compatible to USB 2.0. So anything you run that is USB 2.0 like a flash drive will work in USB 3.0 ports.
USB 3.0 has a build-in backwards compatible to USB 2.0. So anything you run that is USB 2.0 like a flash drive will work in USB 3.0 ports.