Seagate
Seagate Cheetah NS ST3400755SSProduct 400 GB 3.5" SAS internal hard drive
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$23.99
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Synology Inc.
Synology RS3626xs Xeon D-1726 12-Bay 8GB 48TB rackmount NAS
A 12-bay rackmount NAS with Xeon D-1726 processor, 8GB DDR4 ECC memory, 48TB of enterprise drives, dual 10GbE ports and redundant power supplies
- 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 Memory8GB
- Included HDD Capacity48TB (12 x 4TB)
- 12-bay density scales storage to 48 TB with included enterprise drives
- Xeon D-1726 six-core processor handles virtualization and multi-user workloads
- Dual 10GbE RJ-45 ports deliver high-throughput networking out of the box
- Redundant power supplies protect uptime against single-unit failure
- Two PCIe Gen 4 x8 slots allow future 25GbE or SSD cache upgrades
RS3626xs 12-Bay Rackmount NAS
The Synology RS3626xs is a 2U rackmount network-attached storage server built for enterprise workloads. It ships fully assembled with twelve 4TB Synology Enterprise drives providing 48TB of raw capacity. A 6-core Intel Xeon D-1726 processor and 8GB of DDR4 ECC memory drive file, virtualization, and surveillance tasks. Redundant power supplies protect service availability.
Suits teams needing 10GbE throughput
Organisations that want integrated 10GbE RJ-45 ports, Link Aggregation, and PCIe Gen 4 expansion for future network or cache cards will benefit. Buyers who require 25GbE networking from day one should verify immediate adapter compatibility. Environments outside the 0°C to 35°C operating range need alternative ruggedised hardware.
Two 10GbE RJ-45 ports define baseline network speed
Dual 10GbE LAN ports deliver sequential reads above 6,300 MB/s and writes above 3,700 MB/s under Synology test conditions. Two PCIe Gen 4 x8 slots allow adding compatible 10GbE, 25GbE, or Fibre Channel adapters later. The single spec that decides fit is whether your current infrastructure runs on 10GbE copper.
Highlights
- 12-bay density scales storage to 48 TB with included enterprise drives
- Xeon D-1726 six-core processor handles virtualization and multi-user workloads
- Dual 10GbE RJ-45 ports deliver high-throughput networking out of the box
- Redundant power supplies protect uptime against single-unit failure
- Two PCIe Gen 4 x8 slots allow future 25GbE or SSD cache upgrades
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 | 8GB |
| 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 the 8 GB base memory or expand toward the 48 GB maximum?
The unit ships with 8 GB of DDR4 ECC memory installed and supports expansion up to 48 GB; add modules if you run virtual machines or heavy databases, otherwise the factory amount handles typical file and backup workloads.
What does the quoted 6 300 MB/s read and 3 700 MB/s write mean for daily use?
Those are Synology's sequential benchmarks under specific test conditions; real-world speeds will be lower and depend on drive mix, RAID level, network congestion and the workload's random-versus-sequential balance.
How do the two 10GbE RJ-45 ports limit network throughput?
Each port caps at 10 Gb/s; link aggregation can combine them for load balancing and failover, but a single stream cannot exceed one 10 Gb/s link unless a faster adapter is added via the PCIe Gen 4 x8 slots.
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