Seagate
Seagate Cheetah NS ST3400755SSProduct 400 GB 3.5" SAS internal hard drive
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Synology Inc.
Synology RS3626xs 12-bay rackmount NAS Xeon D-1726 48GB 48TB 25GbE
A 12-bay rackmount NAS with Xeon D-1726 processor, 48GB DDR4 RAM, 48TB of SATA drives and dual 25GbE ports
- 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 Memory48GB
- Included HDD Capacity48TB (12 x 4TB)
- Powerful 6-core Xeon D-1726 handles demanding workloads
- 48 GB DDR4 ECC memory scales to heavy multitasking
- 48 TB from twelve 4 TB enterprise drives
- Dual 25 GbE SFP28 ports plus two 10 GbE RJ-45 links
- 2U rackmount with redundant power supplies for uptime
Enterprise rackmount NAS with Xeon D-1726
The Synology RS3626xs is a 12-bay 2U rackmount NAS built around a 6-core Intel Xeon D-1726 processor and 48GB of DDR4 ECC memory. It arrives fully assembled with twelve 4TB Synology Enterprise drives for 48TB of raw capacity. The system targets businesses that need centralised file storage, virtualization support, and multi-site collaboration in a single validated platform.
Capacity and 25GbE headroom
Twelve drive bays filled with 4TB SATA drives provide 48TB before RAID overhead; usable space depends on the chosen protection level. Two onboard 10GbE RJ-45 ports and a supplied dual-port 25GbE SFP28 adapter deliver high-throughput networking for demanding workloads. Synology cites sequential reads beyond 6,300 MB/s and writes beyond 3,700 MB/s under its test conditions, though sustained performance will vary with RAID type, drive health, and network path. The unit operates between 0°C and 35°C.
Bundled adapter and drives
A Synology 2-port 25GbE SFP28 adapter is included, occupying one of two PCIe Gen 4 x8 slots and leaving the second free for future expansion such as additional networking or SSD caching. Twelve Synology Enterprise 4TB drives are pre-installed and the system is tested before shipment. The package also supplies two C13 to C14 power cords, a front cover, and an accessory pack for rack mounting.
Highlights
- Powerful 6-core Xeon D-1726 handles demanding workloads
- 48 GB DDR4 ECC memory scales to heavy multitasking
- 48 TB from twelve 4 TB enterprise drives
- Dual 25 GbE SFP28 ports plus two 10 GbE RJ-45 links
- 2U rackmount with redundant power supplies for uptime
Specifications
| Brand | Synology |
|---|---|
| Model | RS3626xs |
| Port RJ-45 | 2 x RJ-45 10GbE LAN Port 1 x Out-of-Band Management LAN Port 2 x 25GbE SFP28 |
| Port USB | 2 x USB 3.2 Gen 1 Ports |
| Form Factor | 12-Bay |
| Processor | Intel Xeon |
| Installed Memory | 48GB |
| 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
Will the RS3626xs 12-bay chassis accept the 3.5-inch SATA drives I already own?
Yes, the twelve bays support 3.5-inch SATA HDDs so your existing drives can be installed directly.
How can I verify the two 25GbE SFP28 ports and the 10GbE RJ-45 ports are linked at full speed after installation?
Check the front LAN LEDs and the DSM network interface page; both show active link speed for each 10GbE RJ-45 and 25GbE SFP28 port.
Does the package include the twelve 4TB enterprise drives and the 2-port 25GbE adapter, or must I buy them separately?
The box contains the main unit, twelve 4TB Synology Enterprise NAS drives pre-installed, the Synology 2-port 25GbE adapter, two C13-to-C14 power cords, a front cover and an accessory pack.
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