Synology Introduces DiskStation DS1525+ 5-Bay Desktop NAS

Synology, Inc. launches the DiskStation DS1525+ NAS, a compact and high-performance storage solution, designed for SMBs, as well as professional users.

“The DS1525+ offers a powerful foundation for data management and collaboration,” said Owen Liao, product manager, Synology. “With evolving needs for data management, it’s designed to deliver business-grade performance, scalability, and reliability.”

Performance and Scalability
To ensure optimal performance for demanding applications, the DS1525+ is equipped with dual 2.5GbE ports and can be upgraded to 10GbE using the E10G22-T1-Mini module. Two M.2 slots enable the creation of an all-flash cache or storage pool to accelerate high-performance workloads. In performance testing, the DS1525+ achieved SMB sequential throughput of up to 1,181MB/s read and 1,180MB/s write using SSDs.

The DS1525+ is engineered for scalability, supporting up to two 5-bay DX525 expansion units, allowing for up to 15 drives total. This provides up to 300TB of raw storage ⁽¹⁾ capacity, enabling businesses to scale their infrastructure as their data needs grow.

To ensure consistent performance and reliability, the DS1525+ is designed to operate with compatible hard drives. It follows a carefully curated drive compatibility framework, backed by over 7,000 hours of rigorous testing. DSM on the DS1525+ requires the use of compatible hard drives ⁽²⁾ for installation.

Versatile Features for Business Workloads
Powered by Synology DiskStation Manager (DSM) NAS OS, the DS1525+ offers a wide range of tools for business data management:

Synology Drive transforms the system into a private cloud with cross-platform file access and site-to-site syncing.
Active Backup Suite provides centralized backup for Windows, Linux, macOS devices, VMs, and cloud services, with flexible off-site options.
Surveillance Station enables scalable video management and real-time intelligent analytics to safeguard physical assets.

Availability
The Synology DS1525+ is available, starting June 25, 2025, through the company’s network of partners and resellers WW.

⁽¹⁾Raw capacity calculated using 20 TB drives. Usable capacity varies based on drives used and RAID configuration. DS1525+ supports up to 15 drives with 2 Synology DX525 expansion units, sold separately.
⁽²⁾A 3rd-party validation program is available upon request, allowing drive manufacturers to test their products using the same rigorous standards applied to Synology.