Synology DS925+ 4-Bay NAS Enclosure

TheDS925+ 4-Bay NAS EnclosurefromSynologyis a capable solution that can adapt to growing storage demands, with support for up to nine drives with an optional expansion unit, two NVMe M.2 2280 slots for SSD caching, two built in 2.5GbE ports. Powered by Synology DiskStation Manager (DSM), it offers a flexible all-in-one solution for data sharing, synchronization, backup, and surveillance. The DS925+ is equipped with four drive bays that are capable of natively supporting 3.5″ SATA III hard drives as well as 2.5″ SATA III hard drives and SSDs.

The DS925+ runs on Synology DiskStation Manager (DSM) OS, which is a browser-based operating system that helps to simplify managing your Synology NAS. Its CPU is a 2.2 GHz AMD Ryzen V1500B Quad-Core and its 4GB of DDR4 RAM, which can be upgraded to 32GB, allows frequently used files and applications to be quickly accessed. This NAS is capable of sequential read speeds up to 522 MB/s and sequential write speeds up to 565 MB/s.

Also featured are two USB-A 3.2 Gen 1 ports that allow it to be connected to external storage or other USB devices, a USB-C port for the DX525 expansion unit, and network connectivity is achieved via the dual integrated 2.5 Gigabit Ethernet ports that support link aggregation and failover, allowing your stored data to be shared with users throughout the network. For those who require RAID support, the DS925+ supports RAID 0, 1, 5, 6, and 10, as well Synology Hybrid RAID and Basic RAID, each of which offers performance, data redundancy, or a combination of both. For those who do not require a RAID, JBOD is also available, allowing each drive bay to be individually utilized.

The DS925+ is engineered to be energy efficient and its dual 92mm fans to help keep the system running cool at all times. The server supports numerous scheduled power on/off cycles and hard drive hibernation to further minimize power consumption and operation expenses.

The Synology DiskStation DS925+ 4-Bay NAS Enclosure operates on 100-240 VAC at 50/60 Hz and includes an accessory pack, an AC power adapter, an AC power cord, and two RJ45 LAN cables. It is protected by a limited 3-year warranty.

Versatile Storage for Any Purpose

The DS925 offers intuitive and comprehensive file management, media organization, and backup options right out of the box. Its capable performance and compact size make it perfect for users with space constraints, including IT enthusiasts, creative professionals, and businesses of all sizes. It is an ideal edge device for branch offices or retail locations for small firms or large enterprises.

• Up to 522 MB/s sequential read and 565 MB/s sequential write speeds enables fast file sharing, syncing, streaming, and backup for multiple users.
• Two 2.5GbE ports offer fast networking, with Link Aggregation supporting failover and load balancing capabilities.
• Supports four 2.5″ SATA SSDs and 3.5″ SATA HDDs. Synology hard drives and SSDs are designed to integrate seamlessly with Synology systems, delivering exceptional reliability.
• Expandable to 9 drives with Synology DX525 expansion unit.
• Two built-in M.2 slots provide SSD caching capability without occupying drive bays.

Ease of Use and Security Features

A suite of convenience and security features, combined with DSM’s intuitive UI, ensures seamless experience for users of all levels of expertise.

• Easily access your system from any web browser via QuickConnect.
• Adaptive Multi-Factor Authentication (AMFA) triggers upon suspicious external logins, providing an additional layer of security.
• Improve management efficiency with customizable delegation roles, allowing admins to quickly assign roles to non-admin users while restricting access to critical system settings.
• Active Insight, Synology’s cloud-based fleet monitoring solution, leverages machine learning to detect malware and other malicious activity and automatically creates immutable snapshots to protect your data.

Built-In Data Protection Solutions

License-free solutions help protect data and configurations on your Synology system, ensure maximum system uptime, and back up and restore all your devices, VMs, and cloud applications.

• Synology Active Backup Suite consolidates backup tasks and offers rapid restoration of Windows and Linux endpoints, VMs, Synology NAS, and SaaS applications.
• Hyper Backup backs up your Synology system data to multiple destinations securely and efficiently with integrity checks and powerful deduplication, compression, and versioning options.
• Snapshot Replication provides schedulable, near-instantaneous data protection with version control, ensuring that all shared folders and LUNs on your Synology system remain safe and available.
• C2 Storage for Hyper Backup offers a dedicated secure public cloud destination for Synology NAS backup data.

A Collaboration, Communication, and Organization Hub

Synology provides a private cloud solution for on-site and remote workers as well as home users, to concurrently edit documents, share files, manage emails, send instant messages, manage photos, and more.

• Synology Drive serves as a centralized hub to keep your files labeled and organized for easy access, offering granular file sharing permissions and customizable security features to ensure file safety.
• Synology Photos provides a comprehensive solution for storing, organizing, and sharing photos and videos, with powerful features suitable for both personal and professional use.
• Synology Office enables users to collaborate on documents, spreadsheets, and presentation slides in real time, supported by convenient options such as file versioning for easy restoration and password protection.
• Synology Chat brings teams together with one-on-one chats, group chats, and encrypted private channels over multiple platforms.
• Synology MailPlus provides a secure, reliable, and private email server.
• Synology Calendar helps teams keep track of priorities with convenient calendar sharing and scheduling.
• Synology Hybrid Share enhances multi-site teamwork with a global hybrid cloud file system which combines the scalability of the cloud with the fast local access provided by Synology systems.

Private Video Surveillance

Synology Surveillance Station transforms any Synology system into a powerful network video recorder (NVR).

• 8700 supported camera models.
• ONVIF support for a broader selection of cameras.
• Private, subscription-free storage of recordings.
• Access through web browsers, desktop clients, and mobile apps.
• Event-based rules to trigger specific actions.
• Email, SMS, and push notification options.
• Simultaneous recording to the cloud with C2 Backup for Surveillance for an extra layer of data protection and more convenient sharing.

Technical Specifications:

Hardware Specifications

CPU
CPU Model: AMD Ryzen V1500B
CPU Quantity: 1
CPU Core: 4
CPU Architecture: 64-bit
CPU Frequency: 2.2 GHz
Hardware Encryption Engine: N/A

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 reserves the right to replace memory modules with the same or higher frequency based on supplier’s product life cycle status. Compatibility and stability are strictly verified.
• Please select Synology memory modules for optimum compatibility and reliability. Non-Synology modules may void warranty or technical support.
• For multi-module configurations, all modules must be identical and share the same model number. Check the Product Manual for recommended configurations.

Storage
Drive Bays: 4
Maximum Drive Bays with Expansion Unit: 9 (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*
• Notes:
• Hot swappable feature is not supported by M.2 SSD slots.
• Synology guarantees full functionality only for compatible drives. Consult the compatibility list before purchase.

External Ports
RJ-45 2.5GbE LAN Port: 2
USB 3.2 Gen 1 Port: 2
Expansion Port: 1
Expansion Port Type: USB Type-C

Appearance
Size (H x W x D): 166 mm x 199 mm x 223 mm
Weight: 2.26 kg

Others
System Fan: 92 mm x 92 mm x 2 pcs
Fan Speed Mode: Full-Speed, Cool, Quiet
Brightness Adjustable Front LED Indicators: Yes
Power Recovery: Yes
Noise Level: 20.5 dB(A)
Scheduled Power On / Off: Yes
Wake on LAN / WAN: Yes
Power Supply Unit / Adapter: 100 W, 120 W*
AC Input Power Voltage: 100V to 240V AC
Power Frequency: 50/60 Hz, Single Phase
Power Consumption:

• 37.91 W (Access)
• 12.33 W (HDD Hibernation)
• British Thermal Unit:
• 129.27 BTU/hr (Access)
• 42.05 BTU/hr (HDD Hibernation)
• Notes:
• Power consumption measurement details available in Synology documentation.
• Noise testing conducted with system fully installed, idle state, with G.R.A.S. Type 40AE microphones at 1 m distance. Background noise: 16.4917.51 dB(A); Temperature: 24.2525.75C; Humidity: 58.261.8%.

Temperature
Operating Temperature: 0C to 40C (32F to 104F)
Storage Temperature: -20C to 60C (-5F to 140F)
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 hardware warranty, extendable to 5 years with EW201 or Extended Warranty Plus
Notes:

• Warranty period starts from purchase date as stated on your receipt.
• Extended Warranty Plus available in Europe & North America; EW201/EW202 available in Asia, Africa & Oceania.

Environment
RoHS Compliant

What’s in the Box:

• Main Unit 1
• Accessory Pack 1
• AC Power Adapter 1
• AC Power Cord 1
• RJ-45 LAN Cable 2