Synology DiskStation DS425+ / 4-Bays Up to 96TB / Up to 6GB RAM / Up to 40 Camera Supports

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 YES 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 4 × 3.5" SATA HDD or 2.5" SATA SSD 2 × M.2 2280 NVMe SSD Hot Swappable Drive* Yes 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 This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes. Appearance Size (Height × Width × 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 Yes Power Recovery Yes Noise Level 21.6 dB(A) Scheduled Power On / Off Yes Wake on LAN / WAN Yes 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 G.R.A.S. type 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 FCC CE BSMI VCCI RCM UKCA EAC CCC KC BIS Warranty 3-year warranty