Synology DiskStation DS425+ 4-Bay Desktop NAS

The Synology DiskStation DS425+ is a 4-bay Plus Series desktop NAS designed for centralized file storage, backup, media access, surveillance storage, business collaboration, and scalable data management.

With an Intel Celeron J4125 4-core processor, 2GB DDR4 memory, support for up to 6GB memory, 1 x 1GbE LAN port, 1 x 2.5GbE LAN port, 2 x USB 3.2 Gen 1 ports, 2 x M.2 NVMe SSD slots, hot-swappable drive support, and compatibility with 3.5" SATA HDDs, 2.5" SATA SSDs, and M.2 2280 NVMe SSDs, the DS425+ is built for reliable home, professional, and small office storage.

Product Overview

The Synology DiskStation DS425+ is designed for customers who need a capable 4-bay NAS for centralized file storage, backup, collaboration, media access, surveillance, and business data workflows.

With four drive bays and support for Synology Hybrid RAID, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10 configurations, the DS425+ gives users flexible storage options for personal, home office, and small office environments.

Powered by an Intel Celeron J4125 4-core processor with 2.0GHz base frequency and 2.7GHz turbo frequency, plus 2GB DDR4 non-ECC memory, the DS425+ supports Synology DSM features for storage management, file services, backup, surveillance, Synology Drive, Synology Photos, Synology Office, Virtual Machine Manager, and supported business packages.

Key Features

• 4-bay Synology Plus Series desktop NAS
• Intel Celeron J4125 4-core processor
• 2.0GHz base and 2.7GHz turbo CPU frequency
• 2GB DDR4 non-ECC system memory
• Maximum memory capacity of 6GB with compatible memory expansion
• Hardware encryption engine
• Supports 3.5" SATA HDDs
• Supports 2.5" SATA SSDs
• Supports M.2 2280 NVMe SSDs
• 2 x M.2 NVMe SSD slots
• Supports M.2 SSD storage pools
• Supports SSD read/write cache
• Supports SSD TRIM
• Hot-swappable drive support for main drive bays
• 1 x RJ-45 1GbE LAN port
• 1 x RJ-45 2.5GbE LAN port
• 2 x USB 3.2 Gen 1 ports
• Supports Synology Hybrid RAID, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10
• Supports RAID migration from Basic to RAID 1, Basic to RAID 5, RAID 1 to RAID 5, and RAID 5 to RAID 6
• Supports volume expansion with larger HDDs
• Supports volume expansion by adding a HDD
• Maximum single volume size of 108TB
• Low power consumption of 28.25W during access and 6.10W during HDD hibernation
• Compact 166mm x 199mm x 223mm desktop design
• Backed by a 3-year hardware warranty

Recommended Use Cases

• Small office file storage
• Home office storage
• Professional file sharing
• Centralized document backup
• Business backup workflows
• Photo and video storage
• Media library storage
• Surveillance storage
• Synology Drive file access and synchronization
• Synology Office collaboration
• Synology Photos management
• M.2 NVMe storage pools
• SSD cache deployments
• Shared folder snapshots
• Virtual Machine Manager workloads
• 4-bay NAS storage deployment
• RAID 5, RAID 6, or RAID 10 storage configurations
• Business continuity and data protection workflows

Specifications

• Brand: Synology
• Model: DS425+
• Product Type: 4-Bay Plus Series Desktop NAS
• CPU Model: Intel Celeron J4125
• CPU Quantity: 1
• CPU Cores: 4
• CPU Threads: 4
• CPU Architecture: 64-bit
• CPU Frequency: 2.0GHz base / 2.7GHz turbo
• Hardware Encryption Engine: Yes
• System Memory: 2GB DDR4 non-ECC
• Total Memory Slots: 1
• Maximum Memory Capacity: 6GB
• Drive Bays: 4
• M.2 Drive Slots: 2 x NVMe
• Compatible Drive Type: 3.5" SATA HDD
• Compatible Drive Type: 2.5" SATA SSD
• Compatible Drive Type: M.2 2280 NVMe SSD
• Hot Swappable Drive: Yes for main drive bays
• LAN Port: 1 x RJ-45 1GbE
• LAN Port: 1 x RJ-45 2.5GbE
• USB Ports: 2 x USB 3.2 Gen 1
• Size: 166mm x 199mm x 223mm
• Weight: 2.18kg
• System Fan: 92mm x 92mm x 2
• Fan Speed Modes: Full-Speed Mode, Cool Mode, Quiet Mode
• Adjustable Front LED Indicators: Yes
• Power Recovery: Yes
• Scheduled Power On / Off: Yes
• Wake on LAN / WAN: Yes
• Noise Level: 21.6 dB(A)
• Power Supply Unit / Adapter: 90W
• AC Input Power Voltage: 100V to 240V AC
• Power Frequency: 50/60Hz, Single Phase
• Power Consumption: 28.25W during access
• Power Consumption: 6.10W during HDD hibernation
• Operating Temperature: 0°C to 40°C
• Storage Temperature: -20°C to 60°C
• Operating Humidity: 8% to 80% RH
• Storage Humidity: 5% to 95% RH
• Certification: FCC, CE, BSMI, VCCI, RCM, UKCA, EAC, CCC, KC, BIS
• Environment: RoHS Compliant
• Warranty: 3-Year Hardware Warranty

Performance and Reliability Features

• 4-bay Plus Series NAS designed for professional, home office, and small office storage workflows
• Intel Celeron J4125 4-core processor for supported DSM workloads
• 2GB DDR4 memory with support for expansion up to 6GB using compatible Synology memory
• Hardware encryption engine support
• Supports 3.5" SATA HDDs and 2.5" SATA SSDs
• Supports M.2 2280 NVMe SSDs for storage pools or SSD cache
• M.2 SSD storage pool support with Synology-verified SSDs
• SSD read/write cache support
• SSD TRIM support
• Hot-swappable main drive bays for easier drive maintenance
• 1GbE and 2.5GbE LAN connectivity for flexible network access
• USB 3.2 Gen 1 ports for external storage and peripheral connectivity
• Supports Btrfs and ext4 file systems on internal drives
• Supports Synology Hybrid RAID, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10
• Supports RAID migration from Basic to RAID 1, Basic to RAID 5, RAID 1 to RAID 5, and RAID 5 to RAID 6
• Supports volume expansion with larger HDDs
• Supports volume expansion by adding a HDD for Synology Hybrid RAID, JBOD, and RAID 5
• Supports global hot spare for Synology Hybrid RAID, RAID 1, and RAID 5
• Supports DSM file services including SMB, AFP, NFS, FTP, WebDAV, and Rsync
• Supports Synology High Availability
• Supports Synology Photos facial recognition and object recognition
• Supports Synology Drive for file access and synchronization
• Supports Synology Office collaboration workflows
• Supports Virtual Machine Manager with recommended virtual machine instances
• Includes 2 default Surveillance Station licenses
• 3-year warranty support

Compatibility Note

Please check that your selected hard drives, SSDs, M.2 NVMe SSDs, and memory upgrades are compatible with the Synology DS425+ before ordering.

This NAS supports 3.5" SATA HDDs, 2.5" SATA SSDs, and M.2 2280 NVMe SSDs. Storage drives, M.2 SSDs, and memory upgrades are not included unless specifically stated by the seller.

For memory expansion, please use compatible Synology memory modules for optimum compatibility and reliability.

Before ordering, please confirm:

• Your selected drives are compatible with the Synology DS425+
• Your selected M.2 NVMe SSDs are compatible with the Synology DS425+
• Your selected memory module is compatible with the Synology DS425+
• Your required storage capacity matches your intended use
• Your intended RAID, file system, backup, or storage setup
• Your network and device compatibility requirements
• Your intended DSM package and workload requirements
• Whether multiple drives are required for your intended RAID configuration

What’s in the Box

• Synology DS425+ main unit x1
• Accessory pack x1
• AC power adapter x1
• AC power cord x1
• RJ-45 LAN cable x2