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Compact two-bay desktop NAS in matte black finish

Synology Inc.

Synology Inc. DS725+ 2-bay NAS 4GB DDR4

SKU CH-Y4RA-M00KH MPN DS725+

Two-bay desktop NAS with AMD Ryzen R1600 processor, 4 GB DDR4 ECC memory, built-in 2.5GbE and USB 3.2 port, supporting up to 36 TB across RAID 0, 1, 5, 6, 10 or JBOD

  • TypeDesktop NAS
  • Port USB1 x USB3.2
  • HDD Interface2 x SATA (2 x Bay)
  • Form Factor2-bay;4GB DDR4
  • ProcessorAMD Ryzen R1600
  • Installed Memory4GB DDR4 ECC SODIMM

Model DS725+

  • Dependable performance with up to 276 MB/s sequential read throughput
  • Fast networking via built-in 2.5GbE port for high-speed connectivity
  • Versatile storage with RAID 0, 1, 5, 6, 10 and JBOD support
  • Expandable memory up to 32 GB using two DDR4 SODIMM slots
  • High capacity potential supporting up to 36 TB across two drive bays

What this NAS delivers

The Synology DS725+ is a two-bay desktop network storage system sold without drives. It ships with 4 GB of DDR4 ECC memory installed and an AMD Ryzen R1600 processor, providing a compact platform for file sharing, media streaming and backup tasks. The unit includes a single USB 3.2 port and a built-in 2.5 GbE network connection.

Who should consider it and who should not

This model suits home users and small offices that want a quiet, low-power device for centralised storage and Synology DSM applications. Buyers needing more than two drive bays, higher raw throughput than 276 MB/s sequential read, or 10 GbE networking out of the box should look at larger rackmount or multi-bay alternatives.

The spec that decides fit

Maximum raw capacity is 36 TB across the two SATA bays, so the total storage ceiling is fixed by the bay count and the largest supported drives. Memory can be expanded to 32 GB using two DDR4 SODIMM slots if workloads demand more RAM.

I korthet

  • Dependable performance with up to 276 MB/s sequential read throughput
  • Fast networking via built-in 2.5GbE port for high-speed connectivity
  • Versatile storage with RAID 0, 1, 5, 6, 10 and JBOD support
  • Expandable memory up to 32 GB using two DDR4 SODIMM slots
  • High capacity potential supporting up to 36 TB across two drive bays

Specifikationer

BrandSynology
SeriesDiskStation
ModelDS725+
Part NumberDS725+
TypeDesktop NAS
Port USB1 x USB3.2
HDD Interface2 x SATA (2 x Bay)
Form Factor2-bay;4GB DDR4
ProcessorAMD Ryzen R1600
Installed Memory4GB DDR4 ECC SODIMM
Max Memory Capacity32 GB (16 GB x 2)
Memory Slot2 x DDR4 SODIMM
Included HDD CapacityDiskless System
Max Capacity36TB
RAIDRAID 0, 1, 5, 6, 10, and JBOD
Supported ProtocolsSMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS
Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP,
CalDAV
Power100V to 240V AC,50/60 Hz, Single Phase
TemperatureOperating Temperature 0°C to 40°C (32°F to 104°F)
Storage Temperature -20°C to 60°C (-5°F to 140°F)
Humidity5% to 95% RH
UsageBackup & stream media through personal cloud
Dimensions11.18'' x 10.63'' x 4.72''
Weight5.49lbs
Package ContentsMain Unit X 1
Accessory Pack X 1
AC Power Adapter X 1
AC Power Cord X 1
RJ-45 LAN Cable X 2
Fraktvikt2.40 kg
Paketstorlek279 × 279 × 127 mm

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Frågor om den här produkten

How much DDR4 ECC SODIMM memory can I add to the two slots later?

The DS725+ supports up to 32 GB total using two 16 GB DDR4 ECC SODIMM modules, doubling the factory 4 GB.

What throughput ceiling will the single 2.5GbE port hit during long transfers?

Sequential reads reach 276 MB/s and writes 224 MB/s, so sustained traffic saturates around the 2.5 GbE link speed.

How loud and hot does the unit get when running 24/7 in a 25 °C room?

Operating range is 0 °C to 40 °C; the AMD Ryzen R1600 and dual-bay chassis stay within spec with standard fan cooling.

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