Network-attached storage (NAS) are home servers at this point but the same question remains: which drives should you use inside one? Consumer-grade drives and those designed for server use come in all shapes and sizes, ranging from 3.5-inch mechanical hard disk drives (HDDs) to ultra-fast M.2 NVMe solid-state drives (SSDs). Every one of them can store data, so they should all be compatible with a NAS, right? So long as the interface of the drive matches that of the NAS slot you wish to use, you’re good to go, but should you spend more on NAS-grade storage drives?