This article covers Synology NASキット 4ベイ DS425＋ クアッドコアCPU 2GBメモリ搭載 2.5GbE-NICスタンダードユーザー向け 国内正規代理店フィールドレイク取扱品 電話サポート対応品 DiskStation.

Overview

The Synology DiskStation DS425+ is a compact 4-bay desktop NAS built around an Intel Celeron quad-core processor and 2GB of memory. It ships with a built-in 2.5GbE port alongside a gigabit port, which lets you reach sequential read/write speeds of approximately 278/281 MB/s. Since drives are not included, buyers need to check Synology's compatibility list and purchase HDDs separately.
This is a standard-tier model aimed at home users who want a private cloud, plus small offices that need centralized file storage and backup. Running Synology's DiskStation Manager (DSM), it handles data sharing, synchronization, backup, and monitoring through an intuitive interface. With four bays it can store up to 80TB in one place while keeping full ownership of your data.

Connectivity & Compatibility

The DS425+ provides one 2.5GbE port and one 1GbE port. Using the 2.5GbE connection with a compatible switch or PC moves data noticeably faster than traditional gigabit networking. Support for specific drives is determined by Synology's official compatibility list, and the HAT3300 and HAT5300 series are explicitly supported. The unit ships without any HDDs, so a new build will require compatible drives as an extra purchase.
The desktop-style body keeps the footprint small for a four-bay machine. On the software side, DSM provides volume management, RAID configuration, and backup tools, so multiple drives can be organized into a safer, centrally managed storage pool. If you plan to migrate from an existing NAS, check the drive compatibility list before moving data.

Product Info

DS425+ sits in the middle of Synology's NAS lineup as a standard model: more expandable than entry-level 2-bay units while staying more affordable than high-end rack solutions. The reference price on online retailers was around ￥107,900 in September 2026. The package includes a 3-year warranty and is backed by Field Lake as the authorized domestic distributor with phone support. That makes it a safe choice for users who want local support without hunting for gray-market imports.

Best Use Cases

First, households with a growing photo and video library. The four bays allow large-capacity RAID configurations, and DSM's photo tools make it easy to organize and share media across family members. Access from anywhere is possible, turning the NAS into a private cloud. If your total data is under a few terabytes, a 2-bay model would likely be enough.
Second, users who need reliable PC backup. DSM's backup features can protect multiple PCs automatically, which helps against accidental deletion or ransomware. If cloud storage already covers your needs, adding a NAS may be unnecessary complexity.
Third, small offices and remote teams. The 2.5GbE port speeds up file sharing, and DSM supports collaborative editing, permission control, and centralized accounts in an on-premises setup. Since no dedicated IT staff is usually required, the intuitive interface lowers the barrier to entry. For heavy virtualization or many concurrent users, consider a higher-tier model with more memory instead.

Product Disclosure (Amazon)

  • Manufacturer: Synology
  • Seller: XPRICE
  • Fulfilled by: XPRICE
  • ASIN: B0F895RV3K
  • Note: This article covers a manufacturer-made product based on Amazon listing details.