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Model :
SKU : SYNOLOGY DS225 PLUS

The Synology DiskStation DS225+ builds on the award-winning legacy of the Plus series by introducing next-generation 2.5GbE networking to a compact 2-bay form factor. It provides a secure, private cloud environment that puts you in complete control of your digital assets, eliminating recurring public cloud subscription fees while maximizing access speeds for your local network.
Key Features
Next-Gen 2.5GbE Networking: Equipped with a 2.5GbE RJ-45 port and a secondary 1GbE port, the DS225+ breaks the gigabit barrier. Enjoy ultra-fast data transfers with sequential read speeds over 282 MB/s and write speeds over 217 MB/s, ideal for editing high-resolution video directly from the NAS.
Quad-Core Intel Celeron Power: Driven by an Intel Celeron J4125 quad-core processor (burst up to 2.7 GHz), it efficiently handles demanding workloads, heavy indexing, and multiple concurrent users.
Expandable DDR4 Memory: Comes pre-installed with 2GB of DDR4 memory, which can be easily expanded up to 6GB using an additional 4GB SODIMM module for heavier multitasking and virtualization needs.
Comprehensive Data Protection: Utilize Synology Active Backup Suite to protect Windows, Mac, Linux, and VMware endpoints. Snapshot Replication provides near-instantaneous, schedulable data protection against ransomware and accidental deletion using the advanced Btrfs file system.
Private Cloud & File Sharing: Synology Drive transforms the DS225+ into your personal cloud. Sync files across Windows, macOS, Linux, Android, and iOS devices with complete data ownership and zero privacy concerns.
Robust Surveillance Station: Turn your NAS into a powerful Network Video Recorder (NVR) with Synology Surveillance Station. Manage up to 25 IP cameras with deep learning video analytics, mobile viewing, and automated alerts.
Performance & Flexibility
The dual hot-swappable drive bays support both standard 3.5-inch mechanical hard drives for massive storage capacity and 2.5-inch SATA SSDs for lightning-fast caching or silent operation. Two USB 3.2 Gen 1 ports allow for quick external drive backups.
Design & Aesthetics
Housed in a sleek, minimalist black chassis, the DS225+ fits discreetly onto any desktop or bookshelf. Its 92mm cooling fan features multiple speed modes to ensure quiet, cool operation even during heavy workloads.
Why This Product Stands Out
The Synology DS225+ stands out as the ultimate prosumer and small business 2-bay NAS, delivering the highly requested 2.5GbE network interface alongside a proven quad-core CPU and the incredibly powerful, feature-rich Synology DSM software ecosystem.
Feature | Specification |
|---|---|
Device Classification & CPU Architecture | 2-Bay Desktop Network Attached Storage (NAS) CPU Model: Intel Celeron J4125 (64-bit, 4 Cores / 4 Threads) Clock Frequency: 2.0 GHz Base / 2.7 GHz Turbo Boost Hardware Encryption Engine: Integrated (AES-NI) |
System Memory & Expansion | Installed Memory: 2 GB DDR4 non-ECC (onboard) Memory Expansion: 1× SO-DIMM Slot (Supports up to 6 GB total: 2 GB + 4 GB via D4NS01-4G) |
Storage Bays & RAID Management | Drive Bays: 2× 3.5" SATA HDD or 2.5" SATA SSD (Hot-swappable) Supported RAID Modes: Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1 RAID Migration & Expansion: Basic to RAID 1; Volume expansion via larger drives (SHR, RAID 1) Volume Limits: Max Single Volume: 108 TB | Max Internal Volumes: 32 Storage Efficiency: Btrfs-based deduplication, compression, and SSD TRIM support |
Network & Peripheral Interfaces | Multi-Gigabit LAN: 1× 2.5 GbE (RJ-45) port Gigabit LAN: 1× 1 GbE (RJ-45) port (1,500-byte MTU) USB Connectivity: 2× USB 3.2 Gen 1 ports + One-Touch USB Copy button Network Wake: Wake on LAN / WAN support |
File Systems & Protocols | Internal Drives: Btrfs, ext4 External Drives: Btrfs, ext4, ext3, FAT32, NTFS, HFS+, exFAT File Protocols: SMB1/2/3, AFP, NFSv3/v4/v4.1 (Kerberos), FTP, WebDAV, Rsync, iSCSI Network Services: HTTP/HTTPS, SNMP, LDAP, CalDAV, Windows ACL integration |
DSM System Capacity & Scaling | Local Accounts & Groups: Max 512 Users | 128 Groups | 128 Shared Folders Concurrent SMB Connections: 5 (FSCT tested) Hybrid Share & Backup: Up to 10 Hybrid Share folders | Hyper Backup (Folder, Package, and Entire System bare-metal backup) High Availability & Logging: Synology High Availability (SHA) support | Log Center (800 Syslog events/sec) |
Surveillance Station | Camera Capacity: Up to 25 Channels (2 Free licenses included) H.264 Throughput: 1080p @ 750 FPS | 3MP @ 350 FPS | 5MP @ 280 FPS | 4K @ 170 FPS (17 ch) H.265 Throughput: 1080p @ 750 FPS | 3MP @ 600 FPS | 5MP @ 480 FPS | 4K @ 200 FPS (20 ch) |
Productivity & Application Suites | Synology Photos: AI Facial Recognition & Object Recognition (Requires ≥ 4 GB RAM) Synology Drive & Office: Up to 10 recommended concurrent editing users | 100,000 hosted files MailPlus Server: 5 Free email accounts (up to 20 recommended users) Virtual Machine Manager: 2 recommended VM instances | 2 Virtual DSM instances (1 Free license included) SAN Manager: 2 iSCSI Targets | 4 LUNs (Snapshot, Clone, Windows ODX support) Snapshot Replication: 128 snapshots/folder | 32 snapshots/LUN | 1,024 system snapshots |
Power, Thermals & Acoustics | Cooling System: 1× 92 × 92 mm Smart System Fan (Full-Speed, Cool, and Quiet Modes) Acoustic Noise Level: 19.6 dB(A) (Idle) Power Adapter: 60 W External PSU (100–240V AC, 50/60 Hz, Single Phase) Power Consumption: 16.98 W (Access) / 6.08 W (HDD Hibernation) Thermal Output: 57.90 BTU/hr (Access) / 20.73 BTU/hr (HDD Hibernation) Power Controls: Power Recovery, Scheduled Power On/Off, Brightness-adjustable front LEDs |
Dimensions & Weight | Dimensions (H × W × D): 165 × 108 × 232.2 mm (6.5" × 4.25" × 9.14") Weight: 1.3 kg (2.87 lbs) |
Operating Range & Certifications | Operating Temp: 0 °C to 40 °C (32 °F to 104 °F) | Humidity: 8% to 80% RH Storage Temp: -20 °C to 60 °C (-5 °F to 140 °F) | Humidity: 5% to 95% RH Compliance & Certifications: FCC, CE, BSMI, VCCI, RCM, UKCA, EAC, CCC, KC, BIS, RoHS |
Warranty | Standard Warranty: 1-Year Hardware Warranty |