Part of what makes MacBook Air so responsive is that it’s designed entirely around flash storage. Not only does this make MacBook Air much lighter and more portable than traditional notebooks, it also provides faster access to data. Available in capacities up to 512GB,3 this PCIe-based flash storage is up to 17x faster than a traditional 5400-rpm notebook hard drive.4 So when you flip open MacBook Air, it’s ready to go right away. Even after a month in standby mode, the screen springs to life.