Seagate ST4000NM004A 3.5" 4TB SAS 12Gb/s 7200 RPM 256MB rackmount NAS
- 4 TB
- SAS 12Gb/s
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A 4-bay 1U rackmount NAS with AMD Ryzen processor, 16GB DDR4 RAM, dual 10GbE ports and 48TB of Synology Plus drives pre-installed
The Synology RS826RP+ is a 1U rackmount network-attached storage system built around a quad-core AMD Ryzen V1500B processor running at 2.2 GHz. It ships with 16 GB of DDR4 memory and four 12 TB Synology Plus drives pre-installed for 48 TB of raw capacity. Four integrated 1 GbE ports and a factory-fitted 2-port 10GBASE-T adapter provide flexible high-speed connectivity for remote offices and edge deployments.
This unit replaces slower single-gigabit NAS appliances where aggregated 1 GbE links or the included 10 GbE adapter can reduce backup windows and improve virtualisation storage latency. The jump is worth it when workloads saturate 1 GbE pipes or when Link Aggregation and automatic failover are required for business continuity. The PCIe Gen3 slot allows future addition of 25 GbE or M.2 caching without replacing the chassis.
The 44 mm high chassis mounts in any standard 19-inch rack using the included accessory pack and connects to 100–240 VAC power. Four hot-swappable bays accept 3.5-inch SATA hard drives or 2.5-inch SATA SSDs, so drive replacement happens while the system runs. A common issue is forgetting to initialise the expansion port before attaching an RX426 unit, which prevents the extra bays from appearing in DSM.
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| Product | |
|---|---|
| Brand name | Synology |
| Model name | RS826RP+ |
| Processor | |
| CPU | AMD Ryzen |
| Memory | |
| Installed RAM | 16 GB |
| Storage | |
| Drives included | 48 TB (4 × 12 TB) |
| Connectivity | |
| Management options | Web-Based, DHCP Client |
| Ports & slots | |
| LAN ports | 4 × 10/100/1000M 2 × 10GbE 10GBASE-T |
| 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 | 8.0 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 a 1U rackmount measuring 44 mm high, 480 mm wide and 492.6 mm deep; allow at least that depth plus cable bend radius behind the rear panel.
The adapter occupies the single PCIe Gen3 slot; insert it fully until the bracket clicks into the chassis rear and secure the retention screw before powering on.
Replace any drive that SMART reports as degraded or after the manufacturer-rated workload limit is reached; hot-swap the 3.5-inch SATA drive without powering down the NAS.
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