Synology NAS DiskStation DS1520+ (Diskless), 5-Bay; 8GB DDR4

Synology DiskStation DS1520+ is an ideal network-attached storage solution, suitable for small office and IT enthusiasts. Two built-in M.2 SSD slots and Synology SSD Cache technology allow you to boost system I/O and application performance. With scalable storage design, DS1520+ lets you start small and expand storage capacity with the Synology DX517 as your data grows.

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Capacity-scalable NAS with SSD Cache Acceleration Capability. Compatible Drive Type-3.5 inch SATA HDD, 2.5 inch SATA HDD, 2.5 inch SATA SSD, M.2 2280 NVMe SSD. “Compatible drive type” indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay. Each internal volume (may consist of multiple drives) is expandable up to 108TB
Flexibly scale up to fifteen drives to increase storage capacity as demand grows
Built-in M.2 2280 NVMe SSD slots permit cache acceleration without occupying storage drive bays
Back up critical data and reduce Recovery Time Objective (RTO) with Snapshot Replication
Accelerated Application Performance Average 16% performance boost to photo indexing and other computing-intensive operations, as well as database response time