Reliable Data Management for Business Workloads
Synology RackStation RS2421+ and RS2421RP+ (redundant power) are 2U 12- bay rackmount NAS with cost-effective file management, sharing, and backup capabilities, specially designed for small business and remote office deployments. Powered by Synology’s DiskStation Manager (DSM), RS2421(RP)+ units come with powerful built-in business services and can easily be expanded with SSD cache and 10/25GbE networking capabilities.
Features
- High Performance
Support critical workloads with up to 2,200 MB/s read
and 1,154 MB/s write performance
- Redundant Power
Maximize uptime with two redundant power supply
units (RS2421RP+)
- Expansion Options
Scale up to 24 drives with the RX1217(RP)2 and add
10/25GbE networking or fast NVMe SSD Cache with
PCIe add-in cards3
- High Availability
Combine two devices into a Synology High Availability
cluster for maximum service uptime and minute-level
failover
Technical Specifications
| CPU | CPU Model | AMD Ryzen V1500B |
| CPU Quantity | 1 | |
| CPU Architecture | 64-bit | |
| CPU Frequency | 4-core 2.2 GHz | |
| Hardware Encryption Engine (AES-NI) | ||
| 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) | |
| Notes | Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance. Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion. For more information about the recommended memory configurations, please check the Hardware Installation Guide of your Synology product. |
|
| Storage | Drive Bays | 12 |
| Maximum Drive Bays with Expansion Unit | 24 (RX1217/RX1217RP x 1) | |
| Compatible Drive Type* (See all supported drives) | 3.5" SATA HDD 2.5" SATA HDD 2.5" SATA SSD |
|
| Hot Swappable Drive* | ||
| Notes | It is strongly recommended that you only install drives listed on your device's compatibility list. Storage pool and volume creation processes may fail when using unverified drives. Synology is unable to provide technical support for devices using unsupported components. "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay. |
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| External Ports | RJ-45 1GbE LAN Port | 4 (with Link Aggregation / Failover support) |
| USB 3.2 Gen 1 Port* | 2 | |
| Expansion Port | 1 | |
| Notes | The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019. | |
| PCIe | PCIe Expansion | 1 x Gen3 x8 slot (x4 link) |
| File System | Internal Drives | Btrfs EXT4 |
| External Drives | Btrfs EXT4 EXT3 FAT NTFS HFS+ exFAT |
|
| Notes | exFAT Access can be installed for free from Package Center in DSM 7.0. In DSM 6.2 or earlier versions, exFAT Access needs to be purchased in Package Center. | |
| Appearance | Form Factor (RU) | 2U |
| Size (Height x Width x Depth) | RS2421+ :88 mm x 482 mm x 552 mmRS2421RP+ :88 mm x 482 mm x 578 mm | |
| Weight | RS2421+ :11.5 kgRS2421RP+ :11.9 kg | |
| Rack Installation Support* | 4-post 19" rack (Synology Rail Kit - RKS-02) | |
| Notes | The rail kit is sold separately | |
| Others | System Fan | 60 mm x 60 mm x 3 pcs |
| Fan Speed Mode | Full-Speed Mode Cool Mode Quiet Mode |
|
| Easy Replacement System Fan | ||
| Power Recovery | ||
| Noise Level* | RS2421+ :50.1 dB(A)RS2421RP+ :54 dB(A) | |
| Scheduled Power On / Off | ||
| Wake on LAN / WAN | ||
| Power Supply Unit / Adapter | RS2421+ :500 WRS2421RP+ :350 W | |
| Redundant Power Supply | RS2421+ :-RS2421RP+ : | |
| AC Input Power Voltage | 100V to 240V AC | |
| Power Frequency | 50/60 Hz, Single Phase | |
| Power Consumption | RS2421+ :79.56 W (Access) 34.89 W (HDD Hibernation) RS2421RP+ :91.76 W (Access) 48.21 W (HDD Hibernation) |
|
| British Thermal Unit | RS2421+ :271.65 BTU/hr (Access) 119.13 BTU/hr (HDD Hibernation) RS2421RP+ :313.31 BTU/hr (Access) 164.61 BTU/hr (HDD Hibernation) |
|
| Notes | Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s). Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8% |
|
| Temperature | 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 EAC CCC KC UL VCCI RCM |
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