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Brand
Synology
Model no.
DS425+
Size
4 Bays
| CPU | |
| CPU Model | Intel Celeron J4125 |
| CPU Quantity | 1 |
| CPU Cores | 4 |
| CPU Threads | 4 |
| CPU Architecture | 64-bit |
| CPU Frequency | 2.0 (base) / 2.7 (turbo) GHz |
| Hardware Encryption Engine | ? |
| Memory | |
| System Memory | 2 GB DDR4 non-ECC |
| Total Memory Slots | 1 |
| Maximum Memory Capacity | 6 GB (2 GB + 4 GB) |
| Notes | Synology may revise pre-installed memory module specifications in response to component lifecycle and supply conditions. All revised components undergo the same rigorous validation to ensure equivalent compatibility, stability, and 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. |
| Storage | |
| Drive Bays (See all supported drives) | 4 × 3.5" SATA HDD or 2.5" SATA SSD 2 × M.2 2280 NVMe SSD |
| Hot Swappable Drive* | ? |
| Notes | The hot swappable drive feature is not supported by M.2 SSD slots. Synology only guarantees full functionality, reliability, and performance for compatible drives. Please consult our compatibility list before purchasing hard drives. For more details, please refer to this article. SSD cache can be enabled with select compatible SSD. See the compatibility list for model-specific support and details. SSDs are sold separately. |
| External Ports | |
| RJ-45 1GbE LAN Port | 1 |
| RJ-45 2.5GbE LAN Port | 1 |
| USB 3.2 Gen 1 Port | 2 |
| Notes | MTU value of 1GbE LAN port has a limit of 1500. |
| Appearance | |
| Size (Height x Width x Depth) | 166 mm × 199 mm × 223 mm |
| Weight | 2.18 kg |
| Others | |
| System Fan | 92 mm × 92 mm × 2 pcs |
| Fan Speed Mode | Full-Speed Mode Cool Mode Quiet Mode |
| Brightness Adjustable Front LED Indicators | ? |
| Power Recovery | ? |
| Noise Level | 21.6 dB(A) |
| Scheduled Power On / Off | ? |
| Wake on LAN / WAN | ? |
| Power Supply Unit / Adapter | 90 watts |
| AC Input Power Voltage | 100V to 240V AC |
| Power Frequency | 50/60 Hz, Single Phase |
| Power Consumption | 28.25 watts (Access) 6.10 watts (HDD Hibernation) |
| British Thermal Unit | 96.33 BTU/hr (Access) 20.79 BTU/hr (HDD Hibernation) |
| Notes | For more information on how power consumption is measured, refer to this article. Noise testing was conducted with the Synology system fully installed with Synology SATA SSDs and in an idle state. Two GRAS 40AE microphones were placed at a 1 m distance from the front and rear of the device. 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 40°C (32°F to 104°F) |
| Storage Temperature | -20°C to 60°C (-5°F to 140°F) |
| Operating Humidity | 8% to 80% RH |
| Storage Humidity | 5% to 95% RH |
| Certification | |
| Certification | FCC CE BSMI VCCI RCM UKCA EAC CCC KC BIS |
| Warranty | |
| Warranty | 3-year hardware warranty, extendable to 5 years with Extended Warranty Plus |
| Notes | The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) Extended Warranty Plus is only available in Europe and North America. Refer to the Extended Warranty Plus website for details on supported countries/regions. (Learn more) |
| Environment | |
| Environment | RoHS Compliant |
| Packaging Content | |
| Packaging Content | Main Unit X 1 Accessory Pack X 1 AC Power Adapter X 1 AC Power Cord X 1 RJ-45 LAN Cable X 2 |
| Optional Accessories | |
| Optional Accessories | DDR4 non-ECC SODIMM: D4NS01-4G Enterprise Series 3.5" SATA HDD: HAT5300 Series Plus Series 3.5" SATA HDD: HAT3300 Series Enterprise Series 2.5" SATA SSD: SAT5200 Series Enterprise Series M.2 2280 NVMe SSD: SNV3400 & SNV5400 Series |
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