I used to pack my towers with sata drives. Wanted the same but faster and didn’t like this 2-3 m.2 nvme slots age. This may work itself out someday. Pcie 5 x1 is 4GB/s bandwidth. Pcie 6 8GB/s - I wouldn’t need any more than a bunch of x1 slots and a cage to mount a bunch of x1 speed NVME drives in