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Synology DiskStation DS1825xs+
High Performance: Powered by an AMD Ryzen V1780B quad-core processor, it’s designed for demanding workloads and enterprise-level storage.
Scalable Storage: It supports up to eight 3.5″ or 2.5″ SATA HDDs and SSDs internally, and can be expanded with additional drive bays.
Flexible Networking: Includes built-in 10GbE and supports expansion cards for 25GbE or Fibre Channel.
M.2 NVMe SSD Support: Features M.2 slots for NVMe SSDs, which can be used for caching.
Data Protection: Offers comprehensive data backup, protection, and recovery solutions, including support for backing up endpoints, cloud apps, and more.
Surveillance Capabilities: Supports Synology Surveillance Station, allowing for the management of IP cameras.
Expandability: Supports adding more drive bays, faster networking, and SSD cache volumes.
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Description
Synology DiskStation DS1825xs+
Designed for businesses, IT professionals, and media production environments, the DS1825xs+ remains a powerful storage platform for virtualization, data redundancy, and large-scale backups. The transition to 2.5GbE networking ensures more adaptable performance for businesses that aren’t fully utilizing 10GbE yet but need faster speeds than traditional 1GbE. Additionally, Synology has modernized the expansion options by replacing dual eSATA ports with a single USB-C expansion connection, aligning it with the broader 2025 Synology NAS lineup.
Specification | Details |
|---|---|
| Model | Synology DS1825xs+ |
| Processor | AMD V1780B (Quad-Core, 8 Threads) |
| CPU Frequency | 3.35 GHz (Base Clock) |
| Memory | 8GB DDR4 ECC (Expandable) |
| Drive Bays | 8 x 3.5”/2.5” SATA HDD/SSD |
| Maximum Storage | Varies based on drive selection |
| M.2 Slots | 2 x M.2 NVMe (for SSD cache, no storage pool support) |
| RAID Support | Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 |
| Network | 1 x 10GbE + 2 x 2.5GbE RJ-45, 1x 1GbE OOB (TBC) |
| PCIe / Expansion | 1 x PCIe Gen 3 Slot (for additional NIC or SSD card) |
| USB Ports | 2 x USB 3.2 Gen 1 (5Gbps) |
| Expansion Support | DX525 via USB-C |
| Expansion Transfer Speed | 6Gbps (USB-C) |
| eSATA Support | Not Available (Replaced by USB-C) |
| File System | Btrfs, EXT4 |
| Max Concurrent Connections | ~3,500 (Varies by workload) |
| Virtualization Support | VMware, Citrix, Microsoft Hyper-V, Docker |
| Surveillance Support | Yes (Synology Surveillance Station) |
| Multimedia Transcoding | No Hardware-Accelerated Transcoding |
| Power Supply | External 250W Adapter |
| Cooling | 3 x 92mm Fans |
| Noise Level | ~25.5 dB(A) |
| Power Consumption | ~45W (Idle) / ~85W (Under Load) |
| Chassis Material | Metal & Plastic |
| Dimensions (HxWxD) | 270 x 300 x 340 mm |
| Weight | ~7.5 kg (Without Drives) |
| Operating Temperature | 5°C – 40°C |
| Compatible OS | Synology DSM 7.2+ |
| Price (Estimated) | TBD (Expected similar to DS1823xs+) |
| Warranty | 5 Years Standard |
Network Upgrades & Expansion Improvements
The Synology DiskStation DS1825xs+ introduces a more balanced networking setup, replacing the previous 1x 10GbE + 2x 1GbE LAN configuration with 1x 10GbE, 2x 2.5GbE, and 1x 1GbE OOB (Out-of-Band) port. This upgrade dramatically improves network efficiency, particularly for businesses transitioning from legacy 1GbE connections to faster 2.5GbE infrastructure. The new setup allows users to scale their network performance more gradually, without requiring an immediate full 10GbE investment.
For media production houses, virtualization environments, and file-sharing applications, 2.5GbE networking significantly enhances multi-user access, real-time collaboration, and large-scale data transfers. Additionally, the 10GbE port remains a critical feature, ensuring future-proofing for organizations handling large datasets or requiring high-speed remote access. Another key modernization is the removal of eSATA in favor of USB-C, which aligns with Synology’s shift across its 2025 NAS lineup. Users needing additional storage capacity can now use the DX525 expansion unit via USB-C, rather than legacy eSATA interfaces. However, Synology has listed the USB-C expansion speed at 6Gbps, which is not a typical USB 3.2 speed (usually 5Gbps or 10Gbps), raising questions about whether this is a hardware limitation or an internal software restriction. Additionally, Synology’s increasing focus on its proprietary drive ecosystem may require users to verify drive compatibility before expanding their storage pool.
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