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- CPU Model AMD Ryzen V1500B
- CPU Quantity 1
- CPU Core 4
- CPU Architecture 64-bit
- System Memory 4 GB DDR4 ECC UDIMM
- Memory Module Pre-installed 4 GB (4 GB x 1)
The Synology RackStation RS2821RP+ is a powerful and scalable 3U 16-bay NAS server, purpose-built for small to medium-sized businesses that demand high performance, reliability, and expansion options. Designed with enterprise-grade features, it offers enhanced throughput, reliable data protection, and versatile backup solutions, making it ideal for file sharing, data protection, and business-critical applications.
Equipped with a quad-core AMD Ryzen™ V1500B 2.2 GHz processor and 4 GB ECC DDR4 memory (expandable up to 32 GB), the RS2821RP+ delivers seamless multitasking and efficient data processing across demanding business environments.
Experience 2,220 MB/s sequential read and 105K 4K random read IOPS performance. Compared to its predecessor (RS2818RP+), it offers:
Start with 16 bays and scale up to 28 with RX1217RP/RX1217 expansion units, accommodating growing storage needs effortlessly.
Redundant Power Supply
Dual power supply units reduce the risk of power disruptions, ensuring service availability and operational stability.
Synology High Availability (SHA)
Enable minute-level failover between two identical NAS units to achieve near-zero downtime and uninterrupted business operations.
ECC Memory & Btrfs File System
Protect data with ECC memory and enjoy advanced snapshot technology, file self-healing, and streamlined data management with the Btrfs file system.
10/25GbE Ready
Upgrade network speeds with support for 10GbE and 25GbE NICs, allowing up to 5x throughput increase using Link Aggregation.
SSD Cache Support
Boost performance by enabling SSD caching for frequently accessed data, improving I/O speeds without sacrificing capacity.
Expandable On-Demand
Easily expand local storage using Synology expansion units as your business data grows.
License-Free Backup Solutions
With Hyper Backup, back up files, applications, system settings, and more to a wide range of destinations including:
Advanced features like deduplication, multi-versioning, and encryption help optimize storage and protect data.
Snapshot Replication
Take point-in-time snapshots of shared folders and virtual machines with an RPO as low as 5 minutes and near-instant recovery.
Active Backup Suite
Protect Windows PCs/servers, Microsoft 365, Google Workspace, and virtualization platforms like VMware & Hyper-V — all with centralized, deduplicated, and versioned backups.
Synology Drive & Office
Host your own secure private cloud, collaborate in real-time, and manage files across locations without subscription costs.
Synology Chat
Facilitate internal communication with a secure and private messaging platform built into the NAS.
Virtualization-Ready Storage
Certified for VMware®, Microsoft® Hyper-V®, Citrix®, and OpenStack, with full support for VMware VAAI and Windows ODX, enabling fast data offloading and efficient VM provisioning.
| CPU | ||
| CPU Model | AMD Ryzen V1500B | |
| CPU Quantity | 1 | |
| CPU Core | 4 | |
| CPU Architecture | 64-bit | |
| CPU Frequency | 2.2 GHz | |
| Hardware Encryption Engine | — | |
| Memory | ||
| System Memory | 4 GB DDR4 ECC UDIMM | |
| Memory Module Pre-installed | 4 GB (4 GB x 1) | |
| Total Memory Slots | 2 | |
| Maximum Memory Capacity | 32 GB (16 GB x 2) | |
| Memory Notes | Synology recommends using Synology memory modules for compatibility and warranty. | |
| Storage | ||
| Drive Bays | 16 | |
| Hot Swappable Drive | Yes | |
| Max Drive Bays with Expansion | 28 (RX1217 x 1) | |
| Compatible Drive Types | 3.5" SATA HDD, 2.5" SATA HDD, 2.5" SATA SSD | |
| Storage Notes | Full functionality only guaranteed with Synology-validated drives. | |
| External Ports | ||
| RJ-45 1GbE LAN Port | 4 | |
| USB 3.2 Gen 1 Port | 2 | |
| Expansion Port | 1 | |
| Expansion Port Type | Infiniband | |
| PCIe | ||
| PCIe Expansion | 1 x Gen3 x8 slot (x4 link) | |
| Appearance | ||
| Size (HxWxD) | 132.3 mm x 482 mm x 656.5 mm | |
| Weight | 17.1 kg | |
| Rack Installation Support | 4-post 19" rack (RKS-02, sold separately) | |
| Form Factor | 3U | |
| Warranty | ||
| Warranty | 2 years (extendable to 3 years with EW202 or Extended Warranty Plus) | |
| Warranty Notes | Warranty starts from purchase date. Warranty extensions depend on region. | |
| Cooling | ||
| System Fan | 80 mm x 80 mm x 3 pcs | |
| Fan Speed Modes | Full-Speed, Cool, Quiet | |
| Easy Replacement Fan | Yes | |
| Power | ||
| Power Recovery | Yes | |
| Noise Level | 53.5 dB(A) | |
| Redundant Power Supply | — | |
| AC Input Voltage | 100 V to 240 V AC | |
| Power Frequency | 50/60 Hz, Single Phase | |
| Scheduled Power On / Off | Yes | |
| Wake on LAN / WAN | Yes | |
| Power Supply Unit | 550 watts | |
| Power Consumption (Access) | 97.54 watts | |
| Power Consumption (HDD Hibernation) | 49.57 watts | |
| BTU (Access) | 332.61 BTU/hr | |
| BTU (HDD Hibernation) | 169.03 BTU/hr | |
| Power Notes | Measured with WD 1TB WD10EFRX drives. Noise tested with Seagate 2TB ST2000VN000. | |
| Environment | ||
| Operating Temperature | 0°C to 35°C (32°F to 95°F) | |
| Storage Temperature | -20°C to 60°C (-5°F to 140°F) | |
| Relative Humidity | 5% to 95% RH | |
| Certification | FCC, CE, BSMI, VCCI, RCM, EAC, CCC, KC, UL | |
| Compliance | ||
| RoHS Compliant | Yes | |
| Package | ||
| Included Contents | Main Unit x1, Accessory Pack x1, AC Power Cord x2, Quick Installation Guide x1 | |
| Optional Accessories | ||
| DDR4 ECC UDIMM | D4EU01-4G, D4EC-2666-8G, D4EC-2666-16G | |
| Expansion Units | RX1217, RX1217RP | |
| Enterprise HDD | HAT5300 Series | |
| Plus HDD | HAT3300 Series | |
| Enterprise SSD | SAT5200 Series | |
| M.2 SSD & 10GbE Combo Card | E10M20-T1 | |
| M.2 SSD Adapter Card | M2D20 | |
| 25GbE Network Interface Card | E25G30-F2 | |
| 10GbE Network Interface Cards | E10G21-F2, E10G30-T2, E10G18-T1 | |
| Rail Kits | RKS-02 (sliding) | |
| Accessory Notes | All memory modules operate at max CPU-supported frequency. | |
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