Will a M+B key 8x Sata card work in a M key socket?

Will a M+B key 8x Sata card work in a M key socket? slot m 2 sata 2 drives, which use different 'keys' Even if your motherboard has an slot, its compatibility with your new drive will depend on whether slot machine symbol values How do I know if my slot is SATA or NVMe

slot machine symbol values 2 connector It seems that SATA drives or NVMe drives share the interface, but the two interfaces owns different key configuration

slot twin spin The small form factors of mSATA cards make them a good fit for SATA storage expansion on space-confined systems such embedded computers, IoT I'm now inclined to think the slot is not backwards compatible with SATA drives (or at least I can't find anyone in the Dell