This article covers Transcend 500GB MTS425S M.2 2242 SATA III SSD 内蔵ソリッドステートドライブ ノートパソコンとPCデスクトップに対応 SLCキャッシュ B+Mキー 最大530.

Overview

Transcend's MTS425S series brings a 500GB SATA III SSD in the M.2 2242 form factor. Model number TS500GMTS425S achieves sequential reads up to 530MB/s and writes up to 480MB/s, leveraging SLC caching to maintain consistent performance during sustained transfers. The drive also incorporates a RAID engine and LDPC (Low-Density Parity Check) coding for enhanced data integrity. This compact SSD is ideal for upgrading older notebooks or building space-constrained systems where every millimeter counts.

Compatibility Guide

Form factor: M.2 2242 (22mm × 42mm) with B+M key support. Requires an M.2 slot that supports SATA interface (not NVMe-only). Interface: SATA III 6Gb/s — compatible with any SATA-based M.2 slot on motherboards and laptops. * Physical fit: The short 2242 length is less common than the 2280 standard. Most ultrabooks and mini-PCs (e.g., Intel NUC, ASUS PN series) natively support 2242, but desktop boards often lack the mounting hole for 2242 — check your chassis or use an adapter.

Product Info

Released in late 2022, the MTS425S sits in the entry-to-midrange segment. Pricing hovers around 11,000 yen for the 500GB variant, offering good value for its niche. Transcend backs this SSD with a 3-year warranty (subject to regional terms). The SLC cache improves burst write speeds, making it suitable for everyday OS and application loads.

Best Use Cases

Laptop storage upgrade: Swapping out a slow HDD in an older notebook — the M.2 2242 SATA form factor is common in many business and consumer laptops from the 2015-2020 era. The low power draw helps preserve battery life. Small-form-factor builds: Mini PCs like the Intel NUC or Zotac ZBOX series often use M.2 2242 slots. This drive slides in without extra cabling, keeping the interior tidy. * Secondary storage: In desktops already running a fast NVMe boot drive, adding this SATA SSD for bulk files is a cost-effective way to expand capacity without using a 2.5-inch bay. ## Alternatives
Direct competitors include the Kingston A400 480GB (SATA, but primarily 2.5-inch) and Crucial BX500 480GB (also 2.5-inch). The MTS425S is unique in offering M.2 2242 SATA — a form factor that's hard to find elsewhere at this price. If your system supports 2280, you could opt for the cheaper 2.5-inch drives or even step up to a DRAM-less NVMe SSD for higher speeds. However, for space-critical builds, the MTS425S remains the most practical choice.

Things to Consider

This drive is SATA only. Do not install it into an NVMe-only (PCIe) M.2 slot — it won't be recognized. Verify your motherboard or laptop's slot supports SATA M.2. The 2242 length may require a dedicated mounting screw or an adapter bracket if your system only supports 2280. Many desktop motherboards lack the screw hole for 2242. 500GB is ample for an OS and a handful of applications, but if you store large games, video projects, or extensive media libraries, you'll likely run out of space quickly. Consider a larger 2.5-inch SATA SSD or a 1TB+ NVMe drive instead. Performance is capped by SATA III bandwidth — don't expect NVMe-level speeds. For booting and general use, the difference is noticeable but not dramatic compared to a good SATA drive.

Product Disclosure (Amazon)

  • Manufacturer: トランセンドジャパン
  • ASIN: B0BF6S268D
  • Note: This article covers a manufacturer-made product based on Amazon listing details.