How Many Slots are On a Motherboard?

I'm not sure if that adapter requires the m2 port to support SATA, or if it includes a PCIe to SATA bridge, it looks like it does, but even if

2 supports both SATA and PCIe, an module may only be inserted in either one of the two interfaces, so check your motherboard documentation

m2 sata vs nvme slot Can I use an M2 SATA in an NVMe slot A slot that can do SATA will have the M key andor B

m2 slot screw Mini PCIe Slot x 1 Micro SIM Card Slot x 1 14001-0063010: SATA 6G Cable