Are both M.2 Compatible.

[Kronos]

Stripping my motherboard down and removing the 2 x M.2 drives I note the brass connections are different. The Evo had my operating system on and the Corsair my games. All seem to work just fine but I began to have issues with games and wonder if the difference was the cause?

 

[Kronos]

They're both m2 socket but they've got different key fitments. The Samsung 960 evo is M key while the Corsair MP300 is B+M key.

Read this, it should make the differences easier to understand than me trying to explain it lol but basically B+M is backwards compatible with sata m2 sockets and is slower.

Alert: the M.2 M Key Is Different from the M.2 (B+M) Key!

This post shows you the difference between M.2 M and M.2 (B+M) in the aspect of plug (on SSD) and slot (on PC).

www.partitionwizard.com

Thanks for that, decided to buy another M.2 that is the same as the Evo, my brain was spinning looking at the mobo M.2 compatibility specs and then your helpful link.

 

[Kronos]

Yeah you need M key for your board (which is any m2 that isn't sata compatible), you will see small speed decrease with the second slot (motherboard chipset) compared with the first because it's only pcie2 versus pcie3 on the one linked to the cpu.

Assuming you are more gaming focused with your pc I'd maybe consider sticking the gaming drive in the top slot which is faster, then use the second one for the OS which isn't going to need the extra bandwidth as much. Basically you'll hit the drive more loading games than you will loading software in most cases.

Thanks for the tip, will do.