Description, Specifications for Synology DS725+ NAS
Key Features
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Compact 2-Bay NAS with Expansion Support
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Native 2-bay design with support for up to 140 TB total raw capacity using the DX525 expansion unit.
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Ideal for home, small business, and edge data storage applications.
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High-Speed Performance
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Powered by a built-in 2.5 GbE port.
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Delivers up to 276 MB/s read and 224 MB/s write sequential transfer speeds.
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Flexible Storage Options
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Supports both 2.5"/3.5" SATA HDDs and SSDs.
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Includes dual M.2 NVMe slots for SSD caching or creating ultra-fast storage pools.
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Scalable and Future-Ready
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Easily expand storage as your needs grow — from 40 TB in base configuration to 140 TB with expansion.
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Private Cloud and Collaboration
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Centralize, sync, and access files from any device using Synology Drive.
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Enable team productivity with Synology Office, MailPlus, Chat, and Calendar — all hosted securely on-premises.
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Comprehensive Data Protection
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Unified backup for PCs, servers, VMs, and SaaS apps (Google Workspace / Microsoft 365).
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Create immutable snapshots, set custom retention policies, and replicate data off-site for business continuity.
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Smart Surveillance Solution
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Manage up to 40 IP cameras with Surveillance Station (supports 8700+ models).
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Centralized live view, playback, and secure off-site/cloud video backup.
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Centralized Management
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Synology Central Management System for multi-NAS administration.
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Active Insight for real-time performance and backup monitoring via the cloud.
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Optimized for Synology Drives
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Fully compatible with Synology Enterprise and Plus series HDDs/SSDs for best reliability and seamless firmware updates.
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Enhanced Networking with Synology Routers
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Combine with Synology RT6600ax or WRX560 routers to maximize 2.5 GbE throughput, VLANs, and advanced security features.
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Warranty & Reliability
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Backed by a 3-year limited warranty with technical support and hardware replacement.
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Specifications
| 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 |
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| 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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