Samsung 850 EVO-Series 500GB 2.5" or Crucial MX300 525GB M.2-2280

Solution
Both are good. The Crucial drive is a little slower and is usually a little cheaper despite the slightly larger size. If they're priced the same, or very close together, the 850 Evo is the better drive. But I personally wouldn't pay much more for it.
Both are good. The Crucial drive is a little slower and is usually a little cheaper despite the slightly larger size. If they're priced the same, or very close together, the 850 Evo is the better drive. But I personally wouldn't pay much more for it.
 
Solution