Seagate
Seagate Cheetah NS ST3400755SSProduct 400 GB 3.5" SAS internal hard drive
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Synology Inc.
Synology RS3626xs Xeon D-1726 12-Bay Rackmount NAS 32GB 48TB
Twelve-bay 2U rackmount NAS with Xeon D-1726 processor, 32 GB DDR4 memory, two 10 GbE ports and 48 TB of enterprise drives pre-installed
- Port RJ-452 x RJ-45 10GbE LAN Port 1 x Out-of-Band Management LAN Port
- Port USB2 x USB 3.2 Gen 1 Ports
- Form Factor12-Bay
- ProcessorIntel Xeon
- Installed Memory32GB
- Included HDD Capacity48TB (12 x 4TB)
- 6-core Xeon D-1726 handles demanding workloads
- 32GB DDR4 ECC memory supports virtualization
- 48TB raw capacity from 12 enterprise drives
- Dual 10GbE ports enable link aggregation
- Two PCIe Gen 4 x8 slots for expansion
Enterprise 12-bay NAS with Xeon D-1726
The Synology RS3626xs is a 2U rackmount storage server built around a six-core Intel Xeon D-1726 processor and 32GB of DDR4 ECC memory. It ships fully assembled with twelve 4TB Synology Enterprise drives providing 48TB of raw capacity. This appliance targets organisations that need centralised file storage, virtualisation hosts or surveillance archives in a single validated platform.
Thermals and power in normal use
The chassis operates between 0°C and 35°C with humidity up to 80% RH and draws power from dual redundant supplies rated for 100-240 VAC. Two integrated 10GbE RJ-45 ports and an out-of-band management port handle network traffic while the system idles or serves sustained workloads. Synology quotes sequential throughput above 6,300 MB/s read and 3,700 MB/s write under its test conditions.
Capacity constraint that decides fit
Twelve 3.5-inch drive bays limit total raw capacity to the number of installed drives; the included set delivers exactly 48TB and cannot be expanded internally beyond the bay count. Buyers who need more storage must add external expansion units or choose a denser chassis. The two PCIe Gen 4 x8 slots accept compatible network or caching cards but do not add drive bays.
Highlights
- 6-core Xeon D-1726 handles demanding workloads
- 32GB DDR4 ECC memory supports virtualization
- 48TB raw capacity from 12 enterprise drives
- Dual 10GbE ports enable link aggregation
- Two PCIe Gen 4 x8 slots for expansion
Specifications
| Brand | Synology |
|---|---|
| Model | RS3626xs |
| Port RJ-45 | 2 x RJ-45 10GbE LAN Port 1 x Out-of-Band Management LAN Port |
| Port USB | 2 x USB 3.2 Gen 1 Ports |
| Form Factor | 12-Bay |
| Processor | Intel Xeon |
| Installed Memory | 32GB |
| Included HDD Capacity | 48TB (12 x 4TB) |
| Management | Web-Based, DHCP Client |
| LEDs | Power, HDD (Hard Disk Drive), LAN (10/100) |
| Power | 100-240 VAC 50/60Hz |
| Temperature | 0°C to 35°C (32°F to 95°F) |
| Humidity | 8% to 80% RH |
| Dimensions | 88 mm × 482 mm × 724 mm |
| Weight | 14.5 kg |
| Package Contents | Main Unit × 1 Accessory Pack × 1 C13 to C14 power cord × 2 Front Cover × 1 All Configuration Items |
Questions about this item
How do I install the twelve 4TB Synology Enterprise drives and what step is often missed?
Slide each 3.5-inch SATA drive into the twelve hot-swap bays until it clicks, then verify in DSM that all twelve appear in Storage Manager — the step often missed is confirming the volume is created and scrubbed before production use
What maintenance or replacement will the RS3626xs need later?
Replace any failed 4TB Synology Enterprise SATA drive by hot-swapping a matching unit; the 32GB DDR4 ECC memory can be expanded to 48GB using compatible Synology modules, and the two redundant power supplies are field-replaceable
What limit appears first under sustained heavy workloads on the RS3626xs?
The two integrated 10GbE RJ-45 ports saturate at the reported 6,300 MB/s sequential read and 3,700 MB/s sequential write ceiling before the Xeon D-1726 CPU or 32GB DDR4 memory become bottlenecks
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