Unable to use 2nd NVME SSD

MINISFORUM BD770iBD790i nvme m 2 slot motherboard Dual Channel DDR5：2*SMD DIMMs with AMD EXPO™ & Intel® XMP Memory Module Support; SuperSpeed Storage：PCIe x4 Connector; EZ-Latch：PCIe x16 Slot with nvme m2 slot 2 drives, which use different 'keys' Even if your motherboard has an slot, its compatibility with your new drive will depend on whether

nvme m2 ssd slot 2 drives, which use different 'keys' Even if your motherboard has an slot, its compatibility with your new drive will depend on whether