Dell's XPS 15 features several upgradeable components, but swapping in a new SSD could make the biggest difference.
Many high-end laptops these days come with very few upgradable features. There is one component you usually can improve: storage. While even the most basic SSD outperforms any hard disk drive (HDD) you can get even more speed and more storage by upgrading. The Dell XPS 15 (9550) is my top pick for those who want a powerful, quad-core non-gaming laptop ? and despite its svelteness it's surprisingly upgradeable. Here is how to make it even better by tossing in a new SSD.
Full story from the WindowsCentral blog...