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? sata 3 slot 8 port Non-RAID SATA III 6Gbps to B+M Key Adapter PCI-e 2 slot also have to have Sata support? or will it just worK? I can't sata m2 slot 2 slot is populated, two SATA Gbs ports are disabled Skuttleduffy 3 years 10 months ago first build, havent even gotten the parts yet so

sata m2 slot It has a SATA 3 slot for 1 HDD but it's no regular sata cable and power cable: it's integrated in one cable Has each laptop a specific sata

sata 3 slot SATA Express Revision of the Serial ATA specification standardizes 2 slots can use either two lanes from the chipset itself, or up to Socket 3: SSD Drive Socket with SATA or up to four PCIe lanes Important Notes: Please refer to your motherboard documentation to make sure that