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Compact 2-Bay NAS with Expansion Support
Native 2-bay design with support for up to 140 TB total raw capacity using the DX525 expansion unit.
Ideal for home, small business, and edge data storage applications.
High-Speed Performance
Powered by a built-in 2.5 GbE port.
Delivers up to 276 MB/s read and 224 MB/s write sequential transfer speeds.
Flexible Storage Options
Supports both 2.5"/3.5" SATA HDDs and SSDs.
Includes dual M.2 NVMe slots for SSD caching or creating ultra-fast storage pools.
Scalable and Future-Ready
Easily expand storage as your needs grow — from 40 TB in base configuration to 140 TB with expansion.
Private Cloud and Collaboration
Centralize, sync, and access files from any device using Synology Drive.
Enable team productivity with Synology Office, MailPlus, Chat, and Calendar — all hosted securely on-premises.
Comprehensive Data Protection
Unified backup for PCs, servers, VMs, and SaaS apps (Google Workspace / Microsoft 365).
Create immutable snapshots, set custom retention policies, and replicate data off-site for business continuity.
Smart Surveillance Solution
Manage up to 40 IP cameras with Surveillance Station (supports 8700+ models).
Centralized live view, playback, and secure off-site/cloud video backup.
Centralized Management
Synology Central Management System for multi-NAS administration.
Active Insight for real-time performance and backup monitoring via the cloud.
Optimized for Synology Drives
Fully compatible with Synology Enterprise and Plus series HDDs/SSDs for best reliability and seamless firmware updates.
Enhanced Networking with Synology Routers
Combine with Synology RT6600ax or WRX560 routers to maximize 2.5 GbE throughput, VLANs, and advanced security features.
Warranty & Reliability
Backed by a 3-year limited warranty with technical support and hardware replacement.
| CPU | |
|---|---|
| CPU Model | AMD Ryzen R1600 |
| CPU Quantity | 1 |
| CPU Core | 2 |
| CPU Architecture | 64-bit |
| CPU Frequency | 2.6 (base) / 3.1 (turbo) GHz |
| Memory | |
| System Memory | 4 GB DDR4 ECC SODIMM |
| 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 may replace memory modules with the same or higher frequency. Use only Synology memory modules for best compatibility. All modules must be identical and share the same model number. |
| Storage | |
| Drive Bays | 2 |
| Maximum Drive Bays with Expansion Unit | 7 (DX525 x 1) |
| M.2 Drive Slots | 2 (NVMe) |
| Drive Type | 3.5" SATA HDD 2.5" SATA SSD M.2 2280 NVMe SSD |
| Hot Swappable Drive | Yes (excluding M.2 slots) |
| Notes | Hot swap not supported for M.2 SSD slots. Use only compatible drives from the Synology list. |
| External Ports | |
| RJ-45 1GbE LAN Port | 1 |
| RJ-45 2.5GbE LAN Port | 1 |
| USB 3.2 Gen 1 Port | 1 |
| Expansion Port | 1 (USB Type-C) |
| Notes | 1GbE LAN port supports up to 1,500-byte MTU. |
| Appearance | |
| Size (H x W x D) | 166 mm x 106 mm x 223 mm |
| Weight | 1.51 kg |
| Others | |
| System Fan | 92 mm x 92 mm x 1 pcs |
| Fan Speed Mode | Full-Speed Mode Cool Mode Quiet Mode |
| Brightness Adjustable Front LED | Yes |
| Power Recovery | Yes |
| Noise Level | 17.9 dB(A) |
| Scheduled Power On / Off | Yes |
| Wake on LAN / WAN | Yes |
| Power Supply | 65 W Adapter |
| AC Input Voltage | 100V–240V AC |
| Power Frequency | 50/60 Hz, Single Phase |
| Power Consumption | 20.41 W (Access) 7.87 W (HDD Hibernation) |
| BTU | 69.61 BTU/hr (Access) 26.84 BTU/hr (HDD Hibernation) |
| 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 | |
| Warranty | 3 years, extendable to 5 years (EW201 / Extended Warranty Plus) |
| Environment | |
| Compliance | RoHS Compliant |
| Packaging Content | |
| Main Unit ×1 Accessory Pack ×1 AC Power Adapter ×1 AC Power Cord ×1 RJ-45 LAN Cable ×2 |
|
| Optional Accessories | |
| DDR4 ECC SODIMM: D4ES04-4G / D4ES03-8G / D4ES03-16G Expansion Unit: DX525 Enterprise HDD: HAT5300 Series Plus HDD: HAT3300 Series Enterprise SATA SSD: SAT5200 Series Enterprise NVMe SSD: SNV3400 & SNV5400 Series |
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