Synology RS1626xs+ Xeon D-1726 4-Bay Rackmount NAS 64GB 800GB Cache 64TB

Synology RS1626xs+ 4-bay rackmount NAS

The Synology RS1626xs+ is a 1U rackmount NAS with four drive bays, built around an Intel Xeon D-1726 processor and 64GB of DDR4 memory. It ships fully assembled and tested with four 16TB enterprise drives for 64TB of raw capacity, plus 800GB of NVMe cache across two 400GB modules. Dual 10GbE RJ-45 ports and a dedicated management LAN port provide high-throughput network connectivity for business workloads.

Upgrade from single-GbE or smaller-bay NAS

Teams moving from a single 1GbE NAS or a two-bay appliance gain tenfold LAN bandwidth, twice the drive count, and a six-core Xeon that handles virtualization and concurrent services without contention. The jump is worth it when file sharing, backup, and surveillance tasks saturate older links or when drive bays run out before the next budget cycle.

Sustained load with NVMe cache and Xeon cores

Under continuous multi-user access the 800GB NVMe cache absorbs random read and write bursts, keeping latency stable while the Xeon D-1726 maintains throughput across Docker containers, VMware datastores, and SMB transfers. The 100-240 VAC power supply and 5°C to 35°C operating range support 24/7 operation in standard server racks.