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Rectangular black tower with eight front drive bays and USB ports

Synology Inc.

Synology Inc. DS1825+ 8-Bay NAS 8GB DDR4

SKU CH-GB8A-5ZNM6 MPN DS1825+

Eight-bay desktop NAS with AMD Ryzen V1500B, 8GB DDR4, dual 2.5GbE ports and M.2 NVMe cache slots, scaling to 18 drives

  • TypeDesktop NAS
  • Port USB3 x USB3.2 Gen 1
  • HDD Interface3.5" SATA HDD 2.5" SATA SSD M.2 2280 NVMe SSD
  • Form Factor8-Bay
  • ProcessorAMD Ryzen V1500B
  • Installed Memory8GB DDR4

Model DS1825+

  • 8 drive bays support up to 18 drives total
  • AMD Ryzen V1500B processor delivers high read/write performance
  • 8 GB DDR4 ECC memory expandable to 32 GB
  • Two 2.5GbE ports plus optional 10/25GbE upgrade
  • Built-in M.2 2280 NVMe slots accelerate SSD cache

8-Bay Desktop NAS for Small Business

The Synology DS1825+ is an 8-bay desktop NAS built for small businesses and advanced home users who need centralised file storage, backup and virtualization. It ships diskless with 8 GB of DDR4 ECC memory installed and an AMD Ryzen V1500B processor. The unit supports 3.5-inch SATA hard drives, 2.5-inch SATA SSDs and M.2 2280 NVMe SSDs for cache acceleration.

Network and Expansion Limits

Two 2.5 GbE RJ-45 ports provide wired connectivity, with optional 10 or 25 GbE upgrade cards available via the PCIe slot. Three USB 3.2 Gen 1 ports allow direct attachment of external drives or peripherals. The chassis scales to 18 drives when paired with a compatible Synology expansion unit, extending raw capacity beyond the eight internal bays.

Memory Decides Workload Capacity

Installed memory is a single 8 GB DDR4 ECC SODIMM, expandable to 32 GB using two 16 GB modules. The two-slot limit means virtualization, Docker containers or heavy multi-user databases will require a memory upgrade, while lighter file-sharing tasks run adequately on the stock configuration.

Highlights

  • 8 drive bays support up to 18 drives total
  • AMD Ryzen V1500B processor delivers high read/write performance
  • 8 GB DDR4 ECC memory expandable to 32 GB
  • Two 2.5GbE ports plus optional 10/25GbE upgrade
  • Built-in M.2 2280 NVMe slots accelerate SSD cache

Specifications

BrandSynology
SeriesDiskStation
ModelDS1825+
TypeDesktop NAS
Port USB3 x USB3.2 Gen 1
HDD Interface3.5" SATA HDD
2.5" SATA SSD
M.2 2280 NVMe SSD
Form Factor8-Bay
ProcessorAMD Ryzen V1500B
Installed Memory8GB DDR4
Max Memory Capacity32 GB (16 GB x 2)
Memory Slot8 GB DDR4 ECC SODIMM
Included HDD CapacityDiskless System
RAIDSynology Hybrid RAID, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10
Supported ProtocolsSMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP,
CalDAV
Power100 V to 240 V AC, 50/60 Hz, single phase
Power Consumption59.8 W (Access)
26.18 W (HDD Hibernation)
TemperatureOperating: 0°C - 40°C (32°F - 104°F)
Storage: -20°C - 60°C (-5°F - 140°F)
Humidity5% to 95% RH
UsageHigh read/write performance with RAID
Dimensions17.32'' x 13.39'' x 11.06''
Weight16.53 lbs
Package ContentsMain Unit X 1
Accessory Pack X 1
AC Power Cord X 1
RJ-45 LAN Cable X 2
Shipping weight7.89 kg
Package size445 × 356 × 305 mm

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Questions about this item

Should I start with the installed 8 GB DDR4 ECC SODIMM or upgrade to the 32 GB maximum right away?

The unit ships with 8 GB DDR4 ECC SODIMM installed and supports up to 32 GB using two 16 GB modules. For light file serving the factory amount is often sufficient; virtualisation or heavy database workloads benefit from the full 32 GB.

What does the AMD Ryzen V1500B processor deliver for everyday NAS tasks?

The quad-core AMD Ryzen V1500B handles SMB, NFS and iSCSI traffic, RAID parity calculations and Docker containers with headroom for simultaneous backups and media transcoding.

How do the two 2.5GbE RJ-45 ports and the optional 10/25GbE upgrade affect real-world throughput?

The built-in 2.5GbE ports raise the network ceiling to roughly 2.5 Gbps per link; adding a 10/25GbE adapter in the PCIe slot pushes that ceiling to 10 or 25 Gbps for workloads that can saturate it.

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