That's true, but if your goal is low power, that's not necessarily going to be a bottleneck - even if you dedicate all 16 PCIe lanes to NVMe storage it's going

That's true, but if your goal is low power, that's not necessarily going to be a bottleneck - even if you dedicate all 16 PCIe lanes to NVMe storage it's going to be more than fast enough for 99% of home server needs.