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

2 2280-sized NVMe drives, it is the first consumer graphics card to provide an onboard SSD slot When an drive is attached to the SSD, it

2 drives, than your motherboard supports, you have to go for a PCIe add-on card with ports

m2 nvme slot 2 slot But I thought that M+B keyed cards worked in M keyed slots Is there something I need to be aware of? Dees the

m2 slot MSI XPANDER-AERO, The PCI-Express card offers four extra slots to increase your storage capacity at maximum speed