I have an old first generation Dell i7 laptop. Great screen, great keyboard, built like a tank. Very fast. But only USB 2.0. It has one of those USB/SATA combo ports that I've never used. HOLY SH***. Doesn't matter. Ideal for connecting external storage such as an SSD or a 2.5" hard drive. A 3.5 inch hard drive that requires more voltage will not be powered. My old DELL can now transfer data externally at 275MB/s! My old USB 2.0 ports are around 30MB/s. Almost 10x improvement. WOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO