M.2 Key application

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InoLog
Posts: 1
Joined: Thu Nov 19, 2020 10:17 pm

Thu Nov 19, 2020 10:22 pm

Can the M.2 keys interface with any matched key PCIe peripherals? Or do they only support certain devices?
I am interested in connecting a pair of Coral TPU accelerators.

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ccs_hello
Posts: 664
Joined: Sat Oct 13, 2018 9:16 pm

Fri Nov 20, 2020 1:39 am

Usually they do if key type matches.
HOWEVER, there are still a few cases that the required signals are not exposed on PC's M.2 (NGFF) socket interface.
In another word, not all possiblities/combinations are made available nor it is universally compatible.

P.S. we do know details of the M.2 interfaces on LP Alpha or Delta side (Delta has less).
But we do not know what signals are required on your specific card (usually a good manufacturer will have such info in its detailed spec.)

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