m.2 sata ssd's and 2.5" ssd's, depending which one you buy but they all have similar speeds. You won't really see a difference.
Go for NVMe, obviously go for Gen 4's if u can even if u don't have Gen 4 mobo you can always upgrade later, if not, go for the fastest Gen 3. example don't buy crucial p2, buy p3, both pcie 3, but p3 is way faster and 15 euro cheaper for some reason. good pricing amazon.
2023-09-19 17:55