Can I insert a SSD? Is there a slot

m 2 sata ssd slot   Dan m2 pcie slot

Insert the SSD into the slot at a 45° angle Carefully press the SSD down to the horizontal position Install the SSD mounting screw

AFIK the slots are SATA only, no NVMe it say nvme on sinology web site Comment  “an M key slot is compatible with both B+M key SSD and M key SSD ” So again the question is does that M key slot also have to support Sata

game slot playtech demo This means that older mSATA drives and expansion will not work in slots comes in a variety of lengths and also 2 drives are “keyed” at one end so as to prevent the end-user from inserting them in an incompatible socket PCIe NVMe drives are 'M' keyed SATA ones,