Seagate ST4000NM004A 3.5" 4TB SAS 12Gb/s 7200 RPM 256MB rackmount NAS
- 4 TB
- SAS 12Gb/s
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A 1U rackmount NAS with four drive bays, an AMD Ryzen V1500B processor, 32GB DDR4 RAM, 800GB cache and 32TB of Synology Plus drives, fully assembled and tested
The Synology RS826+ is a 1U rackmount network-attached storage server built for edge locations, remote offices, and growing business environments. It ships fully assembled with 32 GB of DDR4 ECC memory, an 800 GB enterprise cache, and four 8 TB Synology Plus drives installed. The AMD Ryzen V1500B four-core processor handles file services, virtualization, and backup workloads in a space-saving chassis.
This unit replaces direct-attached disks or single-bay appliances when teams need shared, redundant storage with centralized management. The jump is worth it when multiple users require simultaneous access, snapshot protection, or scheduled replication across sites. Four 1 GbE ports with link aggregation provide immediate bandwidth scaling without extra hardware.
Under Synology test conditions the system delivers more than 2,000 MB/s sequential read and 1,300 MB/s sequential write, maintaining those rates during concurrent file transfers and backup jobs. The enterprise cache absorbs random I/O bursts so latency stays predictable when databases or virtual machines run alongside everyday file sharing. Operating temperature range of 0 °C to 35 °C ensures stability in typical rack environments.
Measured against everything we stock in Rack-Mounted NAS Servers, at today’s prices. Recalculated every night.
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| Product | |
|---|---|
| Brand name | Synology |
| Model name | RS826+ |
| Processor | |
| CPU | AMD Ryzen |
| Memory | |
| Installed RAM | 32 GB |
| Storage | |
| Drives included | 32 TB (4 × 8 TB) |
| Connectivity | |
| Management options | Web-Based, DHCP Client |
| Ports & slots | |
| LAN ports | 4 × 10/100/1000M |
| USB ports | 2 x USB 3.2 Gen 1 Ports |
| Power | |
| Power details | 100-240 VAC 50/60 Hz |
| Size & build | |
| Form factor | 4-Bay |
| Product dimensions | 44 mm × 480 mm × 492.6 mm |
| Product weight | 6.4 kg |
| In the box | |
| In the box | Main Unit × 1 Accessory Pack × 1 AC Power Cord × 1 All Configuration Items |
| Environment & compliance | |
| Temperature range | 0 °C - 35 °C |
| Humidity range | 5-95% R.H |
| More details | |
| Indicator lights | Power, HDD (Hard Disk Drive), LAN (10/100) |
The unit is 492.6 mm deep, so a rack with at least 500 mm usable depth provides clearance for cables and airflow.
Power down, open the chassis, insert each module into the PCIe Gen3 slot until it clicks, then enable the read-write cache in DSM storage manager.
Monitor SMART health in DSM; plan replacement after five years or when reallocated sector counts rise, using only Synology-compatible 3.5-inch SATA drives.
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