Seagate
Seagate Cheetah NS ST3400755SSProduct 400 GB 3.5" SAS internal hard drive
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Synology Inc.
Synology RS1626xs+ Xeon D-1726 4-Bay Rackmount NAS 16GB 1.6TB Cache 16TB Drives
Enterprise 4-bay rackmount NAS with Xeon D-1726 processor, 16GB RAM, 1.6TB NVMe cache and 16TB of Synology 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 Factor4-Bay
- ProcessorIntel Xeon
- Installed Memory16GB
- Included HDD Capacity16TB (4 x 4TB)
- 6-core Xeon D-1726 processor handles virtualization and heavy workloads
- 16GB DDR4 ECC memory supports data integrity for critical applications
- 6TB NVMe cache accelerates read and write performance
- Four 4TB enterprise drives provide 16TB of protected storage
- Dual 10GbE LAN ports plus management port enable high-speed networking
1U 4-bay rackmount NAS for virtualization and backup
The Synology RS1626xs+ is a 1U rackmount network-attached storage system built around an Intel Xeon D-1726 six-core processor and 16GB DDR4 ECC memory. It ships fully assembled with four 4TB Synology enterprise drives for 16TB raw capacity plus a 1.6TB NVMe cache tier. Dual 10GbE RJ-45 ports and a dedicated management LAN give IT teams high-throughput connectivity for virtualization, file sharing and backup workloads.
Sustained throughput with NVMe cache and 10GbE
Under continuous load the Xeon D-1726 maintains consistent compute for multi-user file access and virtual machine storage. The 1.6TB NVMe cache accelerates random read and write patterns while the dual 10GbE links keep network saturation low during replication or backup jobs. A PCIe Gen4 x8 slot remains available for additional networking or storage controllers if capacity grows beyond the four internal bays.
Front-to-rear airflow in 1U depth
The 44mm chassis uses front-to-rear cooling rated for 5°C to 35°C ambient temperature and 8% to 80% relative humidity. Dual C13 to C14 power cords connect to redundant 100-240 VAC supplies for continuous operation. Status LEDs show power, drive activity and 10GbE link state at a glance. Web-based DSM management and out-of-band LAN access simplify remote administration without extra hardware.
Highlights
- 6-core Xeon D-1726 processor handles virtualization and heavy workloads
- 16GB DDR4 ECC memory supports data integrity for critical applications
- 6TB NVMe cache accelerates read and write performance
- Four 4TB enterprise drives provide 16TB of protected storage
- Dual 10GbE LAN ports plus management port enable high-speed networking
Specifications
| Brand | Synology |
|---|---|
| Model | RS1626xs+ |
| 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 | 4-Bay |
| Processor | Intel Xeon |
| Installed Memory | 16GB |
| Included HDD Capacity | 16TB (4 x 4TB) |
| Management | Web-Based, DHCP Client |
| LEDs | Power, HDD (Hard Disk Drive), LAN (10/100) |
| Power | 100-240 VAC 50/60Hz |
| Temperature | 5°C - 35 °C |
| Humidity | 8% to 80% RH |
| Dimensions | 44 mm × 481.9 mm × 668.5 mm |
| Weight | 9.5 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 loud and hot does the RS1626xs+ get when the Xeon D-1726 runs 24/7?
The unit operates between 5 °C and 35 °C with 8 % to 80 % humidity; dual C13 power cords feed the 100-240 VAC supply.
Which cables and drives must I already have to use the dual 10GbE ports and NVMe cache?
Two RJ-45 10GbE LAN ports are built in; the 1.6 TB cache uses two 800 GB NVMe modules already installed.
Will my existing 4 TB Synology drives work beside the four pre-installed 4 TB drives in the same volume?
All four bays are populated with 4 TB Synology Enterprise drives giving 16 TB raw capacity; expansion units can add up to 16 total drives.
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