Synology RS3626xs Xeon D-1726 12-bay rackmount NAS 16GB 1.6TB cache 192TB

Enterprise 12-bay rackmount NAS

The Synology RS3626xs is a 2U rackmount network-attached storage server built for organisations that need high-capacity, centrally managed file storage. It ships fully assembled with twelve 16 TB SATA drives providing 192 TB of raw capacity, 16 GB of DDR4 ECC memory, and a 1.6 TB Synology Enterprise cache. The six-core Intel Xeon D-1726 processor handles virtualization, surveillance, and multi-site collaboration workloads.

Upgrade from smaller or single-controller units

This system replaces standalone NAS appliances or direct-attached storage that lack redundant power supplies and 10 GbE connectivity. The jump is worth it when uptime requirements demand hot-swappable drives, dual 10 GbE RJ-45 ports with link aggregation, and two PCIe Gen 4 x8 slots for future 25 GbE or Fibre Channel expansion. Buyers who need only a few terabytes or a single network link will not use the headroom.

Sustained throughput under multi-user load

Synology reports sequential performance exceeding 6,300 MB/s read and 3,700 MB/s write under its test conditions, with the 800 GB cache drives absorbing write bursts before flushing to the 16 TB arrays. Dual redundant power supplies keep the platform online during a single supply failure, while the operating range of 0 °C to 35 °C supports continuous operation in standard server rooms. The web-based management console simplifies ongoing administration.