Synology DS1825+ and DS1525+: 5-bay Gets a New CPU, 8-bay More RAM, and Two 2.5 GBE 31 comments
Image: Synology
With the Synology DS1825+ and DS1525+, the new ideas for the Plus series NAS systems complete the DS425+, DS725+, and DS225+, which were recently presented at the fair. The company is also showcasing the 8-bay and 5-bay NAS systems at the fair. DS1525+ with Ryzen, ECC, and 2.5 GbE
The DS1525+ is based on the AMD Ryzen V1500B and offers 8 gigabytes of DDR4-ECC SODIMM memory directly from the factory, which can be expanded to a maximum of 32 gigabytes. The V1500B has four Zen cores with eight threads at 2.2 GHz. This is also used by Synology in the DS925+ and the Synology DS1621+ (review). The predecessor, the DS1522+, still features an AMD Ryzen R1600 with only two processor cores.
For LAN, Synology relies on two faster 2.5 Gigabit network connections in this model. If you want to get more out of it, you can use the network expansion port for the Synology E10G22-T1-MINI to upgrade to 10 Gigabit Ethernet. In addition to the five hard drives in the DS1525+ itself, ten more drives can be added via USB-C via two expansion units (DX525). Two USB-A ports are also available for external storage. Two M.2 slots offer SSDs for cache or volume storage.
Synology DS1525+
Synology DS1525+
x86
2.20 GHz, 4 kern(e), 8 thread(s) AMD Ryzen R1600
x86
2.60 GHz, 2 Core (E), 4 Thread RAM: 8,192 MB Hard Drive Slots: 5 SATA Standard: I/II/III Hard Drive Format: 2.5″ and 3.5″ RAID Level: Individual Impact, JBOD 0, RAID 1
RAID 5, RAID 5 + Hotscratch, RAID 6, RAID 10 M.2 SSD CACH Ports: 2 E/O Ports: 2 × 2.5 Gbit LAN
2 × USB 3.0, 2 × USB 3.1 Type C
PCIE Slot 4 × 1 Gbit LAN
2 × USB 3.0, 2 × eSATA
PCIe Slot Wake on LAN: Yes Encryption: AES-256 (file and disk based) AES-256 (file based): 2 × 92 × 25 mm 2 × 92 × 25 mm
(uncoupled) Power supply: 120 watts (external) Dimensions (H × W × D): 166.0 × 230.0 × 223.0 mm Empty weight: 2.67 kg 2.70 kg Price: – €767
DS1825+ with a real PCIe slot
Also in the DS1825+ for up to eight drives on the hard drive inserts, the Ryzen V1500B with 4 cores and a clock frequency of 2.2 GHz is used. It is also used in the DS1821+, its direct predecessor. The 8 GB of DDR4 ECC-SODIMM, which can be expanded to 32 GB, is also similar. The DS1825+ doesn’t offer faster or more efficient network connections than the DS1525+; here too, there are two LAN connections with up to 2.5 Gbps each.
However, a network or SSD card can be upgraded via a mechanical PCIE GEN3 X8 slot, which is connected in 4 lanes, so 10 Gigabits for the DS1825+ can be easily achieved.
Two M.2 slots allow the installation of NVME SSDs to use an SSD cache or storage pool. With two DX525s, a total of 18 3.5-inch drives can be used. In addition to the two USB-C ports, three USB-A ports are installed.
Synology DS1825+
Synology DS1825+
Due to the large design of 166 × 343 × 243 mm (H × W × D), the DS1825+ uses two 120 mm fans for cooling. The 250-watt power supply is also installed internally for this model. Synology specifies 60.1 watts for power consumption, but 18.34 watts for hard drive standby.
Synology has not yet announced pricing and availability for both NAS systems in Germany. The non-binding retail price of the Synology DS1522+ was €767.55 as a guideline. The non-binding price recommendation for the Synology DS1821+, on the other hand, was around €998 at market launch. Plus series requires certified hard drives
For the DS1525+ and DS1825+, the new hard drive restrictions also apply to Plus models. Synology has decided that all new Plus models will only support third-party hard drives and certified drives. Since no other drives have been certified so far, only Synology drives will remain. Unless you already have a Synology NAS that you want to migrate to one of the new Plus models, then the previous drives can continue to be used in the new NAS. This is a loophole Synology has left its users.
Synology NAS systems and hard drives at Computex 2025
Synology NAS systems and hard drives at Computex 2025 Topics: Computex 2025 NAS Networks Storage Synology
Alice guides you through the best storage solutions, from ultra-fast SSDs to secure cloud options.
