---
title: Synology DiskStation DS425+ 4 Bay NAS Drivec
date: 2025-09-30T11:10:33Z
modified: 2026-05-22T07:05:22Z
permalink: "https://tech.co.za/product/synology-diskstation-ds425-4-bay-nas-drivec/"
type: product
status: publish
excerpt: "Built-in 2.5GbE port and over 278/281 MB/s sequential read/write\\nUp to 80 TB of raw storage\\nBack up multiple endpoints"
wpid: 553250
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/DS425a.jpg"
---

| CPU | CPU Model | Intel Celeron J4125 |
| --- | --- | --- |
| CPU Quantity | 1 |  |
| CPU Core | 4 |  |
| CPU Architecture | 64-bit |  |
| CPU Frequency | 2.0 (base) / 2.7 (turbo) GHz |  |
| Hardware Encryption Engine |  |  |
| Memory | System Memory | 2 GB DDR4 non-ECC |
| Total Memory Slots | 1 |  |
| Maximum Memory Capacity | 6 GB (2 GB + 4 GB) |  |
| 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. |  |
| Storage | Drive Bays | 4 |
| M.2 Drive Slots | 2 (NVMe) |  |
| Drive Type [(See all supported drives)](https://www.synology.com/en-sg/compatibility?search_by=drives) | 3.5″ SATA HDD2.5″ SATA SSDM.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 | 2 |  |
| Notes | MTU value of 1GbE LAN port has a limit of 1500. |  |