Synology RackStation RS3626xs 12-Bay 2U Rackmount NAS (Xeon D-1726, 8GB DDR4 ECC, Diskless)

The Synology RackStation RS3626xs is a 12-bay 2U rackmount network-attached storage system built for demanding business and enterprise workloads. Powered by a 6-core/12-thread Intel Xeon D-1726 processor with 8 GB of DDR4 ECC memory (expandable to 48 GB across six slots) and dual built-in 10GbE ports, it delivers the throughput, data integrity and scalability required for centralised file services, virtualisation storage and backup consolidation.

Advantages

Twelve hot-swappable bays accept 3.5" SATA HDDs or 2.5" SATA SSDs and scale to 36 drives with two RX1225RP expansion units. ECC memory guards against in-memory data corruption, while two PCIe 4.0 x8 slots allow optional 25GbE/10GbE network cards or M.2 NVMe adapter cards for SSD caching. Running Synology DSM, the unit supports the Btrfs file system with snapshots and self-healing data protection.

Suitable for

• Enterprise and SMB centralised file storage and sharing
• Virtualisation back-end storage (VMware, Hyper-V, Citrix) over iSCSI
• High-throughput backup and disaster-recovery consolidation
• Surveillance, media and large-dataset workflows requiring 10GbE

Key specifications

• Brand: Synology
• Model: RackStation RS3626xs
• MPN: RS3626xs
• EAN: 4711174726073
• Form factor: 2U rackmount
• CPU: Intel Xeon D-1726, 6 cores / 12 threads, 2.9 GHz base / 3.5 GHz turbo, 64-bit
• Memory: 8 GB DDR4 ECC UDIMM, 6 slots, expandable to 48 GB
• Drive bays: 12 hot-swappable (3.5" SATA HDD / 2.5" SATA SSD)
• Maximum drives: 36 with two RX1225RP expansion units
• Networking: 2 x 10GbE RJ-45 (built-in), plus out-of-band management port
• Expansion slots: 2 x PCIe Gen4 x8 (optional 25GbE/10GbE NIC or NVMe adapter)
• External ports: 2 x USB 3.2 Gen 1 Type-A, 2 x Mini-SAS HD expansion
• RAID: Basic, JBOD, RAID 0/1/5/6/10 and RAID F1
• File systems: Btrfs and ext4 (internal); supports snapshots, iSCSI and SSD caching
• Power supply: 550 W (optional redundant power via RPS150)
• Dimensions: 88 x 482 x 724 mm; Weight: 14.5 kg
• Hardware encryption engine: Yes (AES-NI)

How to use

Mount the RS3626xs in a standard 19" rack, install up to twelve compatible SATA drives in the hot-swap trays and connect it to the network via the built-in 10GbE ports. Initialise the system with Synology DSM through a web browser to create storage pools and volumes, configure RAID, enable Btrfs snapshots and set up shared folders, iSCSI targets, user permissions and backup tasks. Add PCIe network or NVMe adapter cards and RX1225RP expansion units as capacity and bandwidth needs grow.

Recommendations

For best performance under virtualisation and high random-I/O workloads, populate the PCIe slots with an NVMe adapter for SSD cache and a 25GbE network card, configure RAID 6 or RAID F1 for fault tolerance, and pair the unit with the optional redundant power supply and regular Btrfs snapshots for resilient, always-on storage.