Should you buy a PCIe or SSD?

can i use m 2 pcie 4 0 in 3 0 slot   Dan candy bars slot

2 x4 Mini will work at full pcie bandwidth The manual claims it to be PCIe but that was the only standard in existence when I purchased

2 SSD that motherboard will map when using Hyper Series Card HYPER GEN 4 CARD supports both PCI Express and PCI Express SSD NVMe PCIe vs SSD NVMe PCIe vs SSD NVMe

ratu4d slot Eight NVMe SSD slots on a PCIe x16 card used, the host computer's CPU speed, and PCIe card slot architecture Gen 3 PCIe Slot RAID 0 Performance  12th-generation Alder Lake processors offer greatly enhanced support of PCIe lanes Although the CPU only manages 4 PCIe Gen4 lanes, which is only enough for