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 3.2TB Cache 48TB Drives
Twelve-bay 2U rackmount NAS with Xeon D-1726, 48GB DDR4, 3.2TB cache and 48TB of enterprise drives
- 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)
- 12-bay density scales storage in a 2U rackmount form factor
- Xeon D-1726 6-core processor handles virtualization and multi-site collaboration workloads
- 48 GB DDR4 ECC memory supports demanding business applications and data protection
- 2 TB Synology Enterprise SSD cache accelerates read and write performance
- 48 TB raw capacity from twelve 4 TB Synology Enterprise NAS drives
12-bay rackmount NAS with Xeon D-1726
The Synology RS3626xs is a 2U rackmount network-attached storage server built around a 6-core Intel Xeon D-1726 processor. It ships with 48 GB of DDR4 ECC memory and twelve drive bays populated by 4 TB Synology Enterprise NAS drives. The platform targets businesses that need centralised file storage, virtualization hosting, or multi-site collaboration in a single appliance.
3.2 TB Enterprise cache and dual 10GbE ports
Two 1.6 TB Synology Enterprise cache modules accelerate frequent read and write operations across the volume. Dual integrated 10GbE RJ-45 ports support link aggregation for higher throughput and automatic failover. Two PCIe Gen 4 x8 slots remain available for additional network adapters, Fibre Channel cards, or extra caching hardware as requirements change.
48 TB raw capacity with room to expand
The twelve installed 4 TB drives provide 48 TB of raw capacity for large datasets, backup targets, or surveillance archives. Sequential performance reaches 6,300 MB/s read and 3,700 MB/s write under Synology test conditions. Organisations needing more than twelve bays or denser flash storage will need a different chassis or expansion units.
Highlights
- 12-bay density scales storage in a 2U rackmount form factor
- Xeon D-1726 6-core processor handles virtualization and multi-site collaboration workloads
- 48 GB DDR4 ECC memory supports demanding business applications and data protection
- 2 TB Synology Enterprise SSD cache accelerates read and write performance
- 48 TB raw capacity from twelve 4 TB Synology Enterprise NAS drives
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 | 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
How long do the twelve 4 TB SATA drives and two 1.6 TB cache modules typically last before replacement?
Synology Enterprise drives are rated for continuous operation; plan replacement around the five-year warranty period or when SMART attributes indicate wear.
What thermal limit throttles the Xeon D-1726 first during sustained 10 GbE transfers?
The chassis is specified to 35 °C ambient; internal sensors will throttle the CPU before that boundary is exceeded.
How loud and hot does the 2U rackmount get when all twelve bays and both 10 GbE ports run 24/7?
Dual redundant fans keep the 14.5 kg unit within the 35 °C operating envelope; noise is typical for a 2U server in a rack aisle.
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