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? m 2 slot key m 2 sockets use a M key even if the socket only uses two PCI-E lanes As for the drives, most PCI-E x2 drives are keyed for B+M (so they can m2 expansion slot Buy Buyyart New Mini NGFF B Key SATA-Based SSD to PCI-E mSATA Adapter Card 2230 2242 226080 Motherboard only for Rs 1299 from

m2 sata slot So-called keys ensure that a card can be operated in the respective slot The B, M, or B+M slots are commonly used for internal SSDs