Seagate ST4000NM004A 3.5" 4TB SAS 12Gb/s 7200 RPM 256MB rackmount NAS
- 4 TB
- SAS 12Gb/s
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A 12-bay rackmount NAS with Xeon D-1726 processor, 32GB DDR4 RAM, dual 10GbE ports, and 144TB of enterprise drives pre-installed
The Synology RS3626xs is a 2U rackmount network-attached storage server built for demanding business environments. It ships fully assembled with twelve 12TB enterprise drives providing 144TB of raw capacity, a 6-core Intel Xeon D-1726 processor, and 32GB of DDR4 ECC memory. Dual integrated 10GbE RJ-45 ports and two PCIe Gen 4 x8 slots support high-throughput networking and expansion.
Organisations that require a single appliance for file services, virtualization, backup, or surveillance workloads will benefit from the redundant power supplies and out-of-band management port. Buyers who need more than twelve drive bays or require native 25GbE or Fibre Channel connectivity without adding expansion cards should evaluate larger platforms.
The chassis accepts exactly twelve 3.5-inch SATA HDDs or 2.5-inch SATA SSDs, fixing the internal storage ceiling at the installed 144TB unless drives are replaced with higher-capacity models. Expansion units can add further bays, but the base unit itself cannot accommodate additional internal drives beyond the twelve provided.
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| Product | |
|---|---|
| Brand name | Synology |
| Model name | RS3626xs |
| Processor | |
| CPU | Intel Xeon |
| Memory | |
| Installed RAM | 32 GB |
| Storage | |
| Drives included | 144 TB (12 × 12 TB) |
| Connectivity | |
| Management options | Web-Based, DHCP Client |
| Ports & slots | |
| LAN ports | 2 x RJ-45 10GbE LAN Port 1 x Out-of-Band Management LAN Port 2 × 10GbE 10GBASE-T |
| USB ports | 2 x USB 3.2 Gen 1 Ports |
| Power | |
| Power details | 100-240 VAC 50/60 Hz |
| Size & build | |
| Form factor | 12-Bay |
| Product dimensions | 88 mm × 482 mm × 724 mm |
| Product weight | 14.5 kg |
| In the box | |
| In the box | Main Unit × 1 Accessory Pack × 1 C13 to C14 power cord × 2 Front Cover × 1 All Configuration Items |
| Environment & compliance | |
| Temperature range | 0 °C to 35 °C (32 °F to 95 °F) |
| Humidity range | 8% to 80% RH |
| More details | |
| Indicator lights | Power, HDD (Hard Disk Drive), LAN (10/100) |
Insert the adapter into one of the two PCIe Gen 4 x8 slots, secure the bracket, then enable the ports in DSM Control Panel — the step most people miss is creating the bond or VLAN before moving production traffic.
The twelve 12 TB Synology Enterprise NAS drives are the primary wear items; plan to swap any drive that SMART reports as degraded, and keep a spare 12 TB SATA drive on site.
The operating ceiling is 35 °C ambient; if intake air exceeds that, the system will throttle the Xeon D-1726 to protect itself.
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