Acer Travelmate P2 TMP214-53, slot type

nvme m 2 ssd slot   Dan nvme slot types

2 slots were common, it's not like SATA was super common and then NVMe came later, they came together and always coexisted some cheaper

You can still put an NVMe SSD on an slot as it will fit, but if the slot is SATA only, your throughput speed will be 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,

beat the beast mighty sphinx slot DDR5 · DDR4 Memory Slots 8 · 6 · 4 · 2 Graphics Interface PCIe · PCIe · PCIe PCIe x 16 Slots 7 · 6 · 5 · 4 · 3 · 2 · 1 SSD Slots 5 x  2 PCIe NVMe SSDs is the speed The SATA interface has a speed bottleneck at a 6Gbs transfer rate compared to the PCIe lane with a 16Gbs