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, 8GB DDR4 ECC memory, four 1GbE ports, a dual-port 25GbE adapter, and 24TB of Synology Plus drives included
The Synology RS826+ is a 1U rackmount network-attached storage server built for edge locations and growing business environments. It arrives fully assembled and tested with four 6 TB Synology Plus drives installed, delivering 24 TB of raw capacity. An AMD Ryzen V1500B four-core processor running at 2.2 GHz and 8 GB of DDR4 ECC memory handle file services and virtualization workloads.
The unit includes a Synology two-port 25GbE SFP28 adapter installed in its PCIe Gen3 slot, raising sequential read performance above 2,000 MB/s and write performance above 1,300 MB/s under test conditions. Four onboard 1GbE RJ-45 ports remain available for link aggregation or failover. The jump is worth it when workflows demand sustained multi-gigabit throughput for backup, media editing or database access.
Four 3.5-inch SATA bays support hard drives or 2.5-inch SATA SSDs, leaving the single PCIe Gen3 slot occupied by the 25GbE card. Two USB 3.2 Gen 1 ports provide direct-attached backup or peripheral connections. The system operates between 0 °C and 35 °C with 5–95 % relative humidity and draws power from a 100–240 VAC supply.
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| Product | |
|---|---|
| Brand name | Synology |
| Model name | RS826+ |
| Processor | |
| CPU | AMD Ryzen |
| Memory | |
| Installed RAM | 8 GB |
| Storage | |
| Drives included | 24 TB (4 × 6 TB) |
| Connectivity | |
| Management options | Web-Based, DHCP Client |
| Ports & slots | |
| LAN ports | 4 × 10/100/1000M 2 × 25GbE SFP28 |
| 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, 480 mm wide and 44 mm high, weighing 6.4 kg, so it occupies a standard 1U slot in a 480 mm rack.
Install the Synology 2-Port 25GbE Adapter into the PCIe Gen3 expansion slot, then connect SFP28 cables; the step often missed is enabling the adapter in DSM before configuring IP addresses.
The four 6 TB Synology Plus drives provide 24 TB total; replace any drive when DSM reports a SMART warning or after the rated workload limit for your environment is reached.
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