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 8GB 144TB 25GbE
A 12-bay rackmount NAS with 144 TB of pre-installed enterprise drives, dual 25GbE SFP28 ports, and an Intel Xeon D-1726 processor for demanding business workloads
- 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 Capacity144TB (12 x 12TB)
- 12-bay rackmount design scales to 144TB raw capacity
- Intel Xeon D-1726 six-core processor handles demanding workloads
- 8GB DDR4 ECC memory expandable to 48GB
- Dual 25GbE SFP28 plus two 10GbE RJ-45 ports
- Redundant power supplies protect service availability
Purpose-built capacity
The Synology RS3626xs is a 2U rackmount NAS populated with twelve 12TB enterprise drives for 144TB of raw capacity. An Intel Xeon D-1726 processor and 8GB of DDR4 ECC memory drive file services, virtualization, and surveillance workloads. Dual redundant power supplies protect uptime against a single supply failure. The system ships fully assembled and tested.
Sustained throughput
Synology reports sequential reads exceeding 6,300 MB/s and writes exceeding 3,700 MB/s under its test conditions, reflecting sustained bandwidth rather than burst speeds. Two integrated 10GbE RJ-45 ports support link aggregation for load balancing and failover. The included dual-port 25GbE SFP28 adapter adds high-speed connectivity for demanding multi-user access.
Expansion ceiling
Two PCIe Gen 4 x8 slots accept additional network adapters, Fibre Channel cards, or SSD caching hardware as requirements grow. Memory can be expanded to 48GB for larger concurrent workloads. Twelve 3.5-inch SATA bays set the physical drive limit; buyers needing more bays must add an expansion unit or choose a larger chassis. Operating temperature ranges from 0°C to 35°C.
Highlights
- 12-bay rackmount design scales to 144TB raw capacity
- Intel Xeon D-1726 six-core processor handles demanding workloads
- 8GB DDR4 ECC memory expandable to 48GB
- Dual 25GbE SFP28 plus two 10GbE RJ-45 ports
- Redundant power supplies protect service availability
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 | 8GB |
| Included HDD Capacity | 144TB (12 x 12TB) |
| 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 much heat does the 12-bay rackmount NAS produce when running continuously?
The operating temperature range is 0°C to 35°C, and the unit weighs 14.5 kg with dimensions of 88 mm × 482 mm × 724 mm.
What network infrastructure is required to use the 25GbE SFP28 ports?
Two 25GbE SFP28 ports are built in and need compatible SFP28 transceivers and cabling to connect to a 25GbE switch.
Can the twelve 12TB Synology Enterprise NAS drives work with older SATA controllers?
The twelve 3.5-inch SATA drives are installed in the 12-bay chassis and connect to the system's internal SATA backplane.
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