Seagate ST4000NM004A 3.5" 4TB SAS 12Gb/s 7200 RPM 256MB rackmount NAS
- 4 TB
- SAS 12Gb/s
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A compact 1U rackmount NAS with four drive bays, 16GB DDR4 ECC memory, 1.6TB enterprise cache and 80TB of Synology Plus drives.
The Synology RS826+ is a 1U rackmount network-attached storage server powered by an AMD Ryzen V1500B processor running at 2.2 GHz. It arrives with 16 GB of DDR4 memory, a 1.6 TB enterprise cache, and four 20 TB Synology Plus drives pre-installed for 80 TB of total capacity. The unit is fully assembled and tested before shipment. It targets businesses that need ready-to-run file storage in a space-efficient chassis.
This system suits remote offices, branch locations, or edge deployments that require centralised file services, backup targets, or surveillance storage in a shallow-depth rack. Four integrated gigabit ports with link aggregation provide network redundancy and throughput scaling. Buyers who need 10 GbE or 25 GbE connectivity out of the box, or who require GPU-accelerated workloads, should look at a different platform.
A single PCIe Gen3 expansion slot is the only way to add faster networking such as 10 GbE or 25 GbE adapters later. If the deployment plan depends on multi-gigabit speeds from day one, this chassis will not meet that need without an additional card purchase. Verify card compatibility and slot availability before committing.
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 | 16 GB |
| Storage | |
| Drives included | 80 TB (4 × 20 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 the rack must provide at least that much clear depth behind the front rails.
Insert the four 3.5-inch SATA drives into the front bays first, then install the two cache modules into the internal PCIe slots before powering on.
Add memory when DSM reports sustained high usage during virtualization or heavy multi-user file workloads.
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