Can I use an M2 SATA in an NVMe slot?

Z390: SSDs and disabed SATA ports - ASRock Forums m2 sata 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 slot also have to have Sata m24 slot 2 drive if still takes up a SATA port? Wouldn't it be just as good to buy a full size SSD drive? Reply Taavi says

m2 vs nvme slot Yes for the 2nd one As long as your SATA SSD key fits M2_SSD