this post was submitted on 15 Dec 2025
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There are still a lot of devices in use that don't support NVMe, especially older portable devices. And there are plenty of boards with M.2 slots that only support SATA, not NVMe, over some or all of those slots. It's one of the areas that board manufacturers often use to cut corners and reduce costs.
Getting a separate PCIe card is easy enough for a desktop, even a low profile one, but that's not an option across the board.
That being said, SATA SSD production was already probably getting near being dramatically reduced because NVMe is so prevalent now.
Adding a second NVMe drive may not be hard, but adding a couple dozen more for a NAS means forking over a lot of money for a high end CPU with an extra 96 PCIe lanes. That high end CPU also means high power consumption. For SATA or SAS, you only need a single slot with 8-16 lanes for the controller card.
Most small scale home and business NAS deployments are still going to use spinning disks, not SSD due to the lower cost per GB and the fact that HDD arrays already have enough speed for most small scale use cases.
My disk array at home gets close to SATA SSD speeds in most workloads already, and it's plenty fast enough for anything I can throw at it.