SanDisk Extreme 500 Portable SSDs - 250GB, $100 | 500GB, $170

If only the fastest storage will do, SanDisk’s Extreme 500 external SSDs are on sale for $30-$40 off their usual prices right now on Amazon. Obviously, you’ll get a ton more space for your money by buying standard external hard drives, but none of those are even in the same ballpark in terms of speed.