---
title: Synology DS725+ 2 Bay NAS
date: 2025-09-30T11:10:33Z
modified: 2026-05-18T13:05:18Z
permalink: "https://tech.co.za/product/synology-ds725-2-bay-nas/"
type: product
status: publish
excerpt: "Up to 140 TB of raw storage with expansion unit\\nBuilt-in 2.5GbE port and over 276/224 MB/s sequential read/write\\nBack up multiple endpoints"
wpid: 553251
product_brand:
  - Synology
product_type:
  - simple
product_visibility:
  - featured
product_cat:
  - Data Storage
  - External Drives
pa_form:
  - "2.5\""
  - "3.5\""
  - M.2
pa_interfaces:
  - Ethernet
pa_types:
  - External
featured_image: "https://tech.co.za/wp-content/uploads/2025/09/DS725a.jpg"
---

| CPU | CPU Model | AMD Ryzen R1600 |
| --- | --- | --- |
| CPU Quantity | 1 |  |
| CPU Core | 2 |  |
| CPU Architecture | 64-bit |  |
| CPU Frequency | 2.6 (base) / 3.1 (turbo) GHz |  |
| Hardware Encryption Engine |  |  |
| Memory | System Memory | 4 GB DDR4 ECC SODIMM |
| Memory Module Pre-installed | 4 GB (4 GB x 1) |  |
| Total Memory Slots | 2 |  |
| Maximum Memory Capacity | 32 GB (16 GB x 2) |  |
| Notes | Synology reserves the right to replace memory modules with the same or higher frequency based on supplier’s product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance. Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion. For multi-module memory configurations, all modules must be identical and share the same model number. Check the [Product Manual](https://kb.synology.com/search?sources%5B%5D=hardware_installation_guide) of your Synology product for recommended memory configurations. |  |
| Storage | Drive Bays | 2 |
| Maximum Drive Bays with Expansion Unit | 7 (DX525 x 1) |  |
| M.2 Drive Slots | 2 (NVMe) |  |
| Drive Type [(See all supported drives)](https://www.synology.com/en-me/compatibility?search_by=drives) | 3.5″ SATA HDD 2.5″ SATA SSD M.2 2280 NVMe SSD |  |
| Hot Swappable Drive\* |  |  |
| Notes | The hot swappable drive feature is not supported by M.2 SSD slots. Compatible drives are mandatory. Please consult our [compatibility list](https://www.synology.com/compatibility?search_by=drives) before purchasing hard drives. For more details, please refer to [this article](https://kb.synology.com/DSM/tutorial/Drive_compatibility_policies). |  |
| External Ports | RJ-45 1GbE LAN Port | 1 |
| RJ-45 2.5GbE LAN Port | 1 |  |
| USB 3.2 Gen 1 Port | 1 |  |
| Expansion Port | 1 |  |
| Expansion Port Type | USB Type-C |  |
| Notes | This device’s 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes. |  |
| Appearance | Size (Height x Width x Depth) | 166 mm x 106 mm x 223 mm |
| Weight | 1.51 kg |  |