Synology RS1626xs+ Xeon D-1726 4-Bay Rackmount NAS 32GB 800GB Cache 16TB

Synology RS1626xs+ 4-Bay Rackmount NAS

The Synology RS1626xs+ is a 1U rackmount network-attached storage server built for businesses that need high-performance file sharing, virtualization, backup, and surveillance in a compact form factor. It arrives fully assembled and tested with an Intel Xeon D-1726 processor, 32GB of DDR4 memory, and four enterprise-grade 4TB drives pre-installed. Dual 10GbE RJ-45 ports and a dedicated out-of-band management LAN port provide immediate high-speed connectivity for demanding network environments.

16TB Storage with 800GB NVMe Cache Headroom

The system ships with 16TB of raw capacity across four 3.5-inch drive bays populated by Synology Enterprise NAS drives, leaving no empty bays for internal expansion without an external expansion unit. Read and write caching is handled by two 400GB Synology Enterprise NVMe SSDs, delivering 800GB of fast cache to accelerate frequently accessed workloads such as databases or virtual machines. Memory is installed at 32GB DDR4 ECC RDIMM, configurable up to 64GB, so compute-heavy tasks have headroom before a RAM upgrade becomes necessary.

Thermals Noise and Power in Normal Use

The 1U chassis operates within a 5°C to 35°C ambient temperature range and 8% to 80% relative humidity, cooled by internal fans that maintain stable component temperatures under sustained load. Dual redundant 100-240 VAC power supplies draw from standard C13/C14 cords, providing failover without interruption during a single supply failure. Fan speed scales with thermal demand, so noise levels rise during heavy cache or CPU activity but remain within typical rackmount expectations for a 9.5 kg unit.