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 rackmount NAS with 80 TB of pre-installed drives, 16 GB RAM and 1.6 TB cache for edge and branch workloads
The Synology RS826RP+ is a 1U rackmount network-attached storage server powered by an AMD Ryzen V1500B quad-core processor running at 2.2 GHz. It arrives fully assembled and tested with 16 GB of DDR4 memory, a 1.6 TB enterprise cache consisting of two 800 GB SSDs, and four 20 TB Synology Plus drives installed in its four hot-swappable bays. The system provides four 1 GbE RJ-45 ports with Link Aggregation support for bandwidth aggregation and failover.
This unit fits small-to-medium businesses deploying storage at the edge or in branch offices where a compact, redundant power supply and web-based management simplify remote administration. Buyers who require more than eight drive bays or raw capacity beyond 192 TB with supported 24 TB drives should evaluate larger chassis options. Environments lacking rack infrastructure or needing desktop-form-factor NAS will find the rackmount design unsuitable.
The RS826RP+ includes four drive bays accepting compatible 3.5-inch SATA hard drives and 2.5-inch SATA SSDs. A single Synology RX426 expansion unit can be connected to double the bay count to eight and scale raw storage up to 192 TB using supported 24 TB drives. This expansion capability is the key specification that determines whether the platform can grow with the organisation's storage requirements.
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| Product | |
|---|---|
| Brand name | Synology |
| Model name | RS826RP+ |
| 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 | 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 ships with 16 GB DDR4 installed; Synology specifies this model supports up to 16 GB total, so no further expansion is possible.
Synology tests show sequential reads above 2,000 MB/s and writes above 1,300 MB/s with the included 1.6 TB cache and 80 TB drive set.
Each port runs at 1 GbE; Link Aggregation can combine them for higher throughput, load balancing and automatic failover.
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