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  • Synology 8 Bay DiskStation DS1825+ (Diskless)

Synology 8 Bay DiskStation DS1825+ (Diskless)

3.8 out of 5 stars (26)
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About this item

  • Supports drives on the model's official compatibility list
  • Up to 2,239/1,573 MB/s sequential read/write throughput supports officewide applications
  • Built-in 2.5GbE ports, supports 10GbE SFP+/RJ-45 and 25GbE SFP28 adapter cards
  • Scale up on demand to with two DX525 expansion units for up to 18 drive bays and 360 TB of raw storage
  • Backed by Synology's 3-year limited hardware warranty
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Product description

The DS1825+ is a versatile 8-bay storage solution designed to store and protect mission-critical data. Flexible support for faster networking speeds and capacity expansion makes the DS1825+ ideal for businesses needing a scalable and customizable storage solution for their growing data needs. Powered by Synology DiskStation Manager (DSM), this device is a flexible all-in-one solution for data sharing, synchronization, backup, and surveillance.

Product details

  • Product Dimensions ‏ : ‎ 24.31 x 34.29 x 16.61 cm; 6 kg
  • Manufacturer ‏ : ‎ Synology
  • ASIN ‏ : ‎ B0C8SBXSTJ
  • Item model number ‏ : ‎ DS1825+
  • Customer Reviews:
    3.8 out of 5 stars (26)

Product information

Technical Details

Summary
Brand ‎Synology
Series ‎DS1825+ 28144868
Item model number ‎DS1825+
Product Dimensions ‎24.31 x 34.29 x 16.61 cm; 6 kg
Item dimensions L x W x H ‎24.3 x 34.3 x 16.6 Centimetres
Colour ‎Black

Additional Information

ASIN B0C8SBXSTJ
Customer Reviews
3.8 out of 5 stars (26)

3.8 out of 5 stars
鶹 Rank
Date First Available June 4 2025
Manufacturer Synology

Warranty & Support

鶹.ca Returns Policies:Electronics purchased from 鶹.ca, or a seller but fulfilled by 鶹, can be returned to 鶹.ca within 30 days of delivery of shipment via our online Returns Centre. These items must be in new condition with original packaging and accessories. New, used and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.

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Synology 8 Bay DiskStation DS1825+ (Diskless)

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From the manufacturer

Synology 25 Plus Series NAS ranging from 2 to 8 bay, scalable to 18 bay epansion units (DX525)
DS1825+ home studio office data storage

Enterprise-class storage for demanding workloads

Synology DS1825+ brings enterprise-grade capability to the desktop, delivering a powerful solution for managing massive volumes of mission-critical data. With two built-in 2.5GbE ports and optional 10/25GbE upgrades, it provides a versatile base for advanced workflows such as virtualization, team collaboration, shared repositories and real-time backup, all managed through Synologys intuitive DiskStation Manager (DSM).

Scalable design to support future growth

With eight drive bays and expansion for up to 18, DS1825+ offers exceptional capacity for projects with evolving data needs. It is ideal for consolidating multiterabyte datasets, 4K video and surveillance footage, while maintaining high speed and reliability. Whether used for creative production, backup or collaborative editing, this storage server improves efficiency and streamlines workflows.

Optimized for virtualization

DS1825+ is fully optimized for VMware, Windows Server and Citrix environments with advanced iSCSI management, VM backups and instant snapshot recovery. It can host multiple virtual machines or virtual DSM instances directly, making it a reliable and cost-effective platform for running and protecting critical workloads.

  • Up to 2,329 MB/s read and 1,573 MB/s write throughput
  • Expandable to 18 drives with DX525 units, ideal for growth or long-term archiving
  • Includes 8 GB ECC memory, upgradeable to 32 GB
  • PCIe slot for 10GbE/25GbE network adapters
  • Dual M.2 NVMe SSD slots for fast cache or storage pools
  • Sync and share data across locations with Hybrid Share
  • Use built-in tools to back up data on PCs, Macs, mobile devices and cloud services

Why choose the 25+ Series?

DSM operating system for Synology NAS

Unified, intuitive data management

Every 25 Plus series NAS runs the latest version of Synology DSM, delivering seamless file storage, sharing, device backup and multimedia management. Standard features include fast setup, system-wide search and remote access on all models, from compact 2-bay units to scalable 18-bay systems with raw capacities ranging from 40 TB to 360 TB.

DS225+ 2-bay solutions

Flexible management and expansion

Even compact models like the DS225+ support sizable volumes for home or office and can scale seamlessly into a hybrid cloud. Larger units such as the DS1825+ add ECC RAM, NVMe SSD caching and support for high-end upgrades, while all models include essentials like dual USB-A ports, hot-swappable drives and tool-less trays.

2.5 GbE Standard

Improved networking across the lineup

Every 25 Plus series system includes at least one 2.5GbE port, providing faster transfers than previous generations. Five- and eight-bay models feature dual 2.5GbE, SMB3 Multichannel and PCIe slots for 10/25GbE adapters, eliminating gigabit bottlenecks across the range.

NAS data protection

Full suite of apps and security at any size

From two-bay setups to fully scaled 18-bay systems, the 25 Plus series gives you full access to the DSM app library, including file syncing, surveillance, virtualization, cloud backup and media streaming. All models support backup, versioning, device management and multi-factor authentication to keep data secure at any scale.

Desktop NAS with Synology drives

Synology hard drives offer proven reliability and compatibility, achieved through a comprehensive testing regimen on Synology devices, spanning over 1,000 stress test cycles and 500,000+ hours.

Network Attached Storage | Synology
What can I do with Synology?
  • Back up PCs, Macs and mobile devices
  • Stream photos, videos and music
  • Access and share files securely
  • Replace cloud services such as Dropbox
  • Run Docker and virtual machines
  • Collaborate on files in real-time
  • Synchronize files and folders between Synology NAS devices
  • Use immutable snapshots to create permenant, point-in-time system backups

Dedicated to security and data protection

Network Attached Storage (NAS) provides a centralized location on a network to store data. Synology NAS goes beyond that, enabling you to build your own private cloud eliminating vulnerabilities associated with the internet or public cloud.

Our Product Security Incident Response Team (PSIRT) provides 24-hour response to vulnerabilities, ensuring rapid patches when threats emerge. We employ top security researchers through our Bug Bounty Program and lead community events such as Pwn2Own.

  • Encrypt files, folders and volumes with to keep personal data inaccessible, even if the NAS is stolen
  • Create firewall rules, automatically block IP addresses with too many failed login attempts
  • Enable 2FA or choose from a range of passwordless login methods such as USB logins, Windows Hello or Apple Touch ID
  • Enable NAS-to-NAS backups from your primary NAS to an off-site Synology NAS on a schedule with Synology Hyper Backup
  • Complete the 3-2-1 backup strategy to ensure your data is accessible in any case
DS225+
DS725+
DS425+
DS925+
DS1525+
DS1825+
Customer Reviews
4.4 out of 5 stars 88
4.1 out of 5 stars 31
4.1 out of 5 stars 47
4.0 out of 5 stars 74
4.0 out of 5 stars 39
3.8 out of 5 stars 26
CPU Model Intel Celeron J4125 AMD Ryzen R1600 Intel Celeron J4125 AMD Ryzen V1500B AMD Ryzen V1500B AMD Ryzen V1500B
System Memory 2 GB DDR4 non-ECC 4 GB DDR4 ECC SODIMM 2 GB DDR4 non-ECC 4 GB DDR4 ECC SODIMM 8 GB DDR4 ECC SODIMM 8 GB DDR4 ECC SODIMM
Maximum Memory Capacity 6 GB (2 GB + 4 GB) 6 GB (2 GBa32 GB (16 GB x 2) + 4 GB) 6 GB (2 GB + 4 GB) 32 GB (16 GB x 2) 32 GB (16 GB x 2) 32 GB (16 GB x 2)
RJ-45 1GbE LAN Port 1 1 1 no data no data no data
RJ-45 2.5GbE LAN Port 1 1 1 2 2 2
USB-C Expansion Port no data 1 no data 1 2 2
PCIe Expansion (10/25GBE) no data no data no data no data 1 x Gen3 x2 network upgrade slot 1 x Gen3 x8 slot (x4 link)
M.2 NVMe slots no data 2 2 2 2 2
Suggested max cameras@FPS (H.264) 1080p: 25@750, 5MP: 25 @ 280, 4K: 17 @ 170 1080p: 40@800, 5MP: 28@280, 4K: 17@170 1080p: 40@800, 5MP: 28 @ 280, 4K: 17 @ 170 1080p: 40@1050, 5MP: 30@ 360, 4K: 20 @ 200 1080p: 40@1050, 5MP: 30 @ 360, 4K: 20 @ 200 1080p: 40@ 1050, 5MP: 30 @ 360, 4K: 20 @ 200
Suggested max cameras@FPS (H.265) 1080p: 25@750, 5MP: 25 @ 480, 4K: 20 @ 200 1080p: 40@1200, 5MP: 40 @ 480, 4K: 20 @ 200 1080p: 40@1200, 5MP: 40 @ 480, 4K: 20 @ 200 1080p: 40@1200, 5MP: 40 @ 600, 4K: 30 @ 300 1080p: 40@1200, 5MP: 40 @ 600, 4K: 30 @ 300 1080p: 40@1200, 5MP: 40 @ 600, 4K: 30@300

Top Brand: Synology

Highly Rated
50K+ customers rate items from this brand highly
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1K+ orders for this brand in past 3 months
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Customer reviews

3.8 out of 5 stars
26 global ratings

Customers say

The system cabinet works well with easy setup and software ease of use. However, it only supports Synology drives and cannot use non-Synology hard drives.
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9 customers mention functionality, 7 positive, 2 negative
The system cabinet works well and functions properly with WD Pro Red drives. Customers find it feature rich and note that everything works up front with no problems. The cabinet provides the necessary backend NVR functions for their systems.
5 customers mention setup, 4 positive, 1 negative
Customers find the system cabinet has easy setup and proper detection during installation. They also appreciate the ease of use of the accompanying software.
7 customers mention compatibility, 2 positive, 5 negative
Customers report that the system cabinet only supports Synology drives and cannot use non-Synology hard drives. They also mention it is not compatible with future OS upgrades and the setup software couldn't find Synology.

Top review from Canada

  • Spin
    5.0 out of 5 stars Good news!
    Reviewed in Canada on October 25, 2025
    Synology user looking to upgrade. Synology just came out and reverted their decision of only allowing Synology on all 25+ models under DSM 7.3 - So we can use any brand of drives.
    4 people found this helpful
    Helpful
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Top reviews from other countries

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  • J. Urbanek
    5.0 out of 5 stars Third-Party Drives Supported as of DSM 7.3
    Reviewed in the United States on December 10, 2025
    Verified Purchase
    Three-time Synology owner (DS1812, DS1819, DS1825) and almost wasn't given the now short-lived decision by Synology to only support first-party drives (Synology branded) on the DS25 series. So it is clear, as of DSM 7.3 Synology has silently walked back their short-lived first-party only experiment and now third-party drives are supported on the DS25 series. There are still some first-party requirements around NVMe (be sure to read up on it, search "synology drive compatibility policies"), but third-party 3.5" spinning disks work just fine. I have a fleet of Western Digital Red Pro 18TB drives working very well in the DS1825.

    Comparing Synology CPU, memory, networking, etc. against Synology's competition is missing the forest for the trees. It is rather well-known (and accepted) that Synology NAS's do not have the latest, greatest, best, fastest CPU's and memory "per dollar". We buy Synology for the best software and support, not for bleeding edge bountiful hardware. DSM (the OS) and the package management is second to none for prosumers looking for something that is feature rich and "just works" without fidgeting, tinkering, and hacking around (although you can certainly do that as well).

    My Synology runs as a SMB share, DNS Server, and DHCP Server. It also provides the backend NVR functions for several non-Synology cameras through Surveillance Station and serves to backup my personal OneDrive (natively through Synology Cloud Sync and Hyper Backup) and iCloud Drive (through some third-party tooling given the security enabled on my iCloud account and Synology Hyper Backup). Other functions I've used over the years include the Container (Docker) manager, Active Directory integration, and using it as an iSCSI target.

    From a software standpoint, each of these use cases have worked very well over the years and remain the principal reason I look to Synology for my NAS needs. They just work without much care and feeding (other than software updates).

    I evaluated and built out a TrueNAS host (with ECC memory, LSI HBA and everything) given first-party drive requirement from Synology (I was frustrated like everyone else). TrueNAS is fine, but I just don't want to tinker anymore. After reading about Synology DSM 7.3 supporting third-party drives, quickly picked up a DS1825 and some fresh WD Red Pro's over Black Friday 2025.

    If Synology decides to go down the road of "first-party drives only" again on the prosumer lines (like the DS), it'll be on a future series and equally as frustrating. Fingers crossed they've learned their lesson. For now, I've got 7 years of Synology DS1825 with third-party drives to enjoy until I am in the market again when the DS1832 is released. We'll see what it looks like then.
    Report
  • Quibid
    5.0 out of 5 stars OK so far.
    Reviewed in Australia on December 23, 2025
    Verified Purchase
    Starting to work out quite well.
    Some confusion caused in guides where actual process time or progress is not mentioned.
    Minor failing of icons not transferring onto desktop display as professed.
    Report
  • è69
    5.0 out of 5 stars ϤäѤm
    Reviewed in Japan on October 31, 2025
    Verified Purchase
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  • Ben
    1.0 out of 5 stars Cannot use non-Synology hard drives!
    Reviewed in the United States on September 16, 2025
    Verified Purchase
    The product description is not clear - you must purchase Synology branded harddrives in order to use this at all. The product description said "reduced functionality" with drives not on the compatibility list. Reduced functionality must mean it only functions as a paperweight+space heater because you cannot install the operating system onto a drive that isn't Synology brand. I do not understand why normal hard drives (Western Digital, Seagate, HGST, etc) are blocked from this device. If Synology branded drives are required they I'd think they'd just be included and configurable. Just like buying a MacBook.

    I'm forced to return this as I'm not replacing my existing hard drives that I've spent thousands of dollars on.
    Customer image
    Ben
    1.0 out of 5 stars
    Cannot use non-Synology hard drives!

    Reviewed in the United States on September 16, 2025
    The product description is not clear - you must purchase Synology branded harddrives in order to use this at all. The product description said "reduced functionality" with drives not on the compatibility list. Reduced functionality must mean it only functions as a paperweight+space heater because you cannot install the operating system onto a drive that isn't Synology brand. I do not understand why normal hard drives (Western Digital, Seagate, HGST, etc) are blocked from this device. If Synology branded drives are required they I'd think they'd just be included and configurable. Just like buying a MacBook.

    I'm forced to return this as I'm not replacing my existing hard drives that I've spent thousands of dollars on.
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    Report
  • 鶹 ީ`
    1.0 out of 5 stars ԴDZDz⤬ָٶ٤Τߥ󥹥ȩ`
    Reviewed in Japan on August 5, 2025
    Verified Purchase
    25+`αˤĤơԴDZDz⤬ʾٶ٥ꥹȤˤʤٶ٤Ǥϡ¹楤󥹥ȩ`뤬Ǥޤ

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    DSM 7.3Ǥϴäͤ졢2025˰kӤ줿NASΤPlus?Value?Jθ`ǥϻQԥꥹȤ˒dƤʤHDD?2.5SSDäǤ褦ˤʤޤȤΤȡ
    Report
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