# Transcend TS2TMTS425S 2TB M.2 SATAIII 2242 SSD Review - Compact Large Storage

> Ideal for upgrading thin laptops and embedded systems with limited space.

Tags: ssd, transcend, m.2 2242, sata iii, 2tb
Source: https://www.amazon.co.jp/dp/B092W8G8C6
Article page: https://web-autoai.com/articles/transcend-ts2tmts425s-2tb-m2-sataiii-2242-bm?lang=en

Prices and ratings change over time — check the article page for the current values.

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This article covers Transcend TS2TMTS425S 2TB M.2 SATAIII 2242 B+M キー 内蔵ソリッドステートドライブ.
The Transcend TS2TMTS425S is an internal SSD designed for the M.2 2242 form factor, offering a massive 2TB capacity. It uses a SATA III interface with a B+M key connector, ensuring broad compatibility across various devices. The standout feature is packing 2TB of storage into a compact 42mm length, ideal for thin laptops, tablets, and industrial systems where space is limited. Built-in SLC caching technology enhances random access performance and contributes to long-term reliability.
This SSD fits M.2 2242 slots only; it requires a SATA-capable M.2 interface (not NVMe-only). The B+M key design allows installation in both B-key and M-key sockets. Since it uses SATA III (6Gbps), transfer speeds are capped at around 550 MB/s, so it won't match NVMe performance. Before purchase, verify that your device's M.2 slot supports SATA signaling and has the physical 42mm length. It is not compatible with longer slots (e. g. , 2280) without an adapter.
Released around 2021, the TS2TMTS425S remains available through major retailers like . Check the retailer's page for the latest price. Transcend offers a standard 3-year warranty. Market positioning is entry-to-mid-range, offering the highest capacity in the niche M.2 2242 segment. While not as fast as NVMe, it provides ample performance for SATA-linked systems. TLC NAND with SLC caching balances cost and daily use efficiency.
Upgrading thin laptops or tablets: Devices with a M.2 2242 slot often lack high-capacity options. This 2TB drive is perfect for storing large media libraries, archives, or running multiple applications. Industrial or embedded systems: The combination of SLC cache, RAID engine, and LDPC error correction ensures data integrity and stable long-term operation in demanding environments. * Budget file server or secondary machine: If high sequential speeds aren't critical, this SATA SSD offers generous capacity at a lower cost than NVMe equivalents, making it suitable for backups or media storage.

## Things to Consider
The primary limitation is speed: SATA III maxes out at 600 MB/s, far slower than even entry-level NVMe drives. This makes it unsuitable for tasks requiring fast loading, such as gaming or 4K video editing. Additionally, many modern laptops and desktops use NVMe-only M.2 slots; double-check your device's specifications. The price per gigabyte is higher than that of 2.5-inch SATA SSDs, so consider whether the compact form factor justifies the premium. Finally, the 2TB capacity may be overkill for basic storage; assess your actual needs before purchasing.

### Product Disclosure (Amazon)
- Manufacturer: トランセンドジャパン
- ASIN: B092W8G8C6
- Note: This article covers a manufacturer-made product based on Amazon listing details.