Synology RS1626xs+ Xeon D-1726 4-Bay Rackmount NAS 32GB 800GB Cache 80TB

Synology RS1626xs+ 4-bay rackmount NAS

The Synology RS1626xs+ is a 1U rackmount network-attached storage server with four drive bays, an Intel Xeon D-1726 processor and 32GB of DDR4 memory. It ships fully assembled and tested with four 20TB enterprise hard drives and an 800GB NVMe cache. This configuration targets businesses that need immediate capacity and accelerated I/O for virtualization, file sharing or backup workloads.

Upgrade from single-gigabit or smaller-bay units

Dual 10GbE RJ-45 ports replace single 1GbE links and remove the network bottleneck that stalls multi-user access and VM migration. The 800GB NVMe cache tier accelerates random reads and writes far beyond mechanical drives alone. The jump is worth it when concurrent users, virtual machines or surveillance streams exceed the throughput of a 1GbE, two-bay platform.

80TB raw capacity with 800GB cache headroom

Four 20TB enterprise drives deliver 80TB of raw storage for large datasets, backups and media libraries. The 800GB NVMe cache absorbs hot metadata and frequent small-block I/O, keeping latency low under mixed workloads. Headroom narrows when sustained sequential writes exceed cache flush speed or when the four-bay limit prevents further expansion without an external unit.