Network-attached storage (NAS) can interface with hard disk drives (HDDs) and solid-state drives (SSDs). These two technologies differ in operating and storing data. Older mechanical HDDs use motors and spinning platters with magnetic heads whereas an SSD is a newer technology and relies on electronic chips and cells to store data. HDDs have a maximum bandwidth of around 550MB/s under the right conditions whereas the fastest PCIe 5.0 NVMe SSDs top out at 15,000MB/s but SSDs are considerably more expensive than mechanical drives. When looking at new drives for your NAS, here are some reasons you should consider using SSDs.