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 10GbE
A 12-bay 2U rackmount NAS with Xeon D-1726 CPU, 32GB DDR4 RAM, dual 10GbE ports, and 48TB of enterprise SATA 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)
- Intel Xeon D-1726 6-core processor powers demanding business workloads
- 32GB DDR4 ECC memory handles virtualization and multi-user access smoothly
- Two integrated 10GbE RJ-45 ports deliver sequential reads beyond 6,300 MB/s and writes beyond 3,700 MB/s
- Twelve 4TB Synology Enterprise drives provide 48TB raw capacity in a 12-bay chassis
- Redundant power supplies and PCIe Gen 4 x8 slots protect uptime and allow future expansion
RS3626xs 12-Bay Rackmount NAS
The Synology RS3626xs is a 2U rackmount network-attached storage server with twelve drive bays. It ships fully assembled with twelve 4TB Synology Enterprise drives for 48TB of raw capacity. A 6-core Intel Xeon D-1726 processor and 32GB of DDR4 ECC memory power the platform. Two integrated 10GbE RJ-45 ports and a PCIe 10GbE adapter provide high-speed network connectivity out of the box.
Suits virtualisation and multi-site teams.
This unit serves businesses that need centralised file storage, backup targets, virtual machine hosting or multi-site collaboration. The Xeon D-1726 and 32GB RAM handle concurrent workloads and Synology DSM services. Buyers who need GPU acceleration for AI training, rendering or hardware transcoding should look elsewhere because the chassis has no PCIe slots wired for double-width graphics cards and the power budget does not support them.
48TB raw capacity with twelve 4TB drives
The included drive set delivers 48TB raw across twelve 3.5-inch SATA bays using Synology Enterprise HDDs. This capacity figure determines how much data you can store before adding expansion units or replacing drives with larger models. The 12-bay limit is fixed by the chassis; no internal bays remain free for immediate growth.
Highlights
- Intel Xeon D-1726 6-core processor powers demanding business workloads
- 32GB DDR4 ECC memory handles virtualization and multi-user access smoothly
- Two integrated 10GbE RJ-45 ports deliver sequential reads beyond 6,300 MB/s and writes beyond 3,700 MB/s
- Twelve 4TB Synology Enterprise drives provide 48TB raw capacity in a 12-bay chassis
- Redundant power supplies and PCIe Gen 4 x8 slots protect uptime and allow future expansion
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 10GbE 10GBASE-T |
| 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
Should I pick this 12-bay unit with 48TB of Synology Enterprise drives or a different capacity?
This model ships fully assembled with twelve 4TB Synology Enterprise NAS drives for 48TB raw capacity in a 12-bay 2U chassis; choose it when you need that exact drive count and capacity out of the box.
What does the quoted 6,300 MB/s read and 3,700 MB/s write mean for my workloads?
Those are Synology's sequential figures under their test conditions; real-world throughput will depend on RAID type, file size, network topology and the workload mix you run.
What does the 10GBASE-T interface cap in practice?
Two integrated 10GBASE-T RJ-45 ports plus a 2-port 10GbE adapter give four 10GbE links; each link tops out at 10Gbps and Link Aggregation can combine them for higher aggregate throughput.
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