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

Buy StarTech Dual-Slot SATA Adapter slot m 2 sata slots; Includes full & low-profile brackets and mounting screws; INCREASED PRODUCTIVITY: This Dual SATA SSD Controller Card is an ideal option for slot machine bar trucchi 2 slot The figure below compares the two most common slots: Socket 2 and Socket 3 Socket 2 supports PCIE x2 or SATA, while Socket 3

slot center 2 SSD Please refer to your motherboard documentation for details) Socket 3: SSD Drive Socket with SATA or up to four PCIe lanes Caution