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 64GB 800GB Cache 80TB
A 4-bay 1U rackmount NAS with a Xeon D-1726 processor, 64GB DDR4 memory, 800GB NVMe cache and 80TB of enterprise 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 Factor4-Bay
- ProcessorIntel Xeon
- Installed Memory64GB
- Included HDD Capacity80TB (4 x 20TB)
- Powerful 6-core Xeon D-1726 processor handles virtualization workloads
- 64GB DDR4 ECC memory supports demanding multi-user applications
- Dual 10GbE RJ-45 ports deliver high-speed network connectivity
- 800GB NVMe cache accelerates frequent data access
- 80TB enterprise drives provide massive redundant storage capacity
4-Bay 1U Rackmount NAS
The Synology RS1626xs+ is a 1U rackmount network-attached storage server with four drive bays. It ships fully assembled with an Intel Xeon D-1726 processor, 64GB of DDR4 memory, 800GB of NVMe cache, and 80TB of raw capacity across four enterprise drives. This configuration targets businesses that need consolidated file, backup and virtualization storage in a single rack unit.
Verify rack depth and network uplinks
Before ordering, confirm that your rack provides at least 668.5 mm of usable depth and that the 100-240 VAC power feed matches the dual C13 cords supplied. The system exposes two 10GbE RJ-45 ports and a dedicated management LAN port, so plan switch ports and cabling for those speeds. Operating temperature must stay between 5 °C and 35 °C with humidity below 80 % RH.
Sustained multi-user workloads
Under continuous load the Xeon D-1726 six-core CPU and 64GB ECC memory maintain consistent throughput for virtual machines, snapshots and replication tasks. The dual NVMe cache absorbs write bursts while the four enterprise drives deliver steady sequential bandwidth. Passive cooling in the 44 mm chassis keeps component temperatures stable during extended operations without throttling.
Highlights
- Powerful 6-core Xeon D-1726 processor handles virtualization workloads
- 64GB DDR4 ECC memory supports demanding multi-user applications
- Dual 10GbE RJ-45 ports deliver high-speed network connectivity
- 800GB NVMe cache accelerates frequent data access
- 80TB enterprise drives provide massive redundant storage capacity
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 | 64GB |
| Included HDD Capacity | 80TB (4 x 20TB) |
| 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
Does the RS1626xs+ ship with drives and cache installed or must I add them separately?
The unit arrives fully assembled with four 20 TB Synology Enterprise NAS drives and two 400 GB Synology Enterprise NVMe cache modules already installed.
Which memory and cache configuration does this specific build include?
This build includes 64 GB of DDR4 ECC memory and 800 GB of NVMe cache made up of two 400 GB Synology Enterprise modules.
What throughput can I expect from the dual 10 GbE ports when the NAS is under load?
The two 10 GbE RJ-45 ports provide up to 10 Gbps each for high-speed file sharing, virtualization traffic and backup workloads.
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