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

2 SATA devices as specified on the ASUS website Since my laptop came with a SATA SSD does that indicate the motherboard does NOT support NVMe

2 drives aren't connected to a motherboard via a cable, they're instead plugged directly into the motherboard using a dedicated connector

motherboard with m2 slot slot That's where an NVME to PCIe storage card comes in In this video 2

slot vs hole SSD is fully compatible with your motherboard whether it's old or new and how to make