Transcend
Transcend MTS425 2TB M.2 2242 SATA III SSD
Bottom line: The Transcend MTS425 2TB M.2 2242 SATA III SSD ($409.99 on Amazon as of 2026-10-06): 2TB in the short 42mm M.2 2242 form factor, where most drives stop at 1TB; main trade-off: SATA III caps reads at 550MB/s - far slower than an NVMe drive in the same slot.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ 2TB in the short 42mm M.2 2242 form factor, where most drives stop at 1TB
- ✓ B+M key edge fits both B-key and M-key SATA slots, widening laptop compatibility
- ✓ SLC cache absorbs write bursts, keeping app loads and file copies responsive
- ✓ LDPC error correction plus RAID engine guard against transfer-level data corruption
- ✓ DevSleep idles the SATA interface to extend battery life in ultrabooks
Cons
- ✗ SATA III caps reads at 550MB/s - far slower than an NVMe drive in the same slot
- ✗ Three-year warranty trails the five-year coverage common on rival 2TB SSDs
- ✗ 3D TLC NAND slows once sustained writes exhaust the SLC cache
- ✗ No hardware encryption listed in the spec sheet for business or compliance use
Manufacturer description
The Transcend MTS425 2TB is an M.2 2242 SATA III SSD built for the short-slot machines that full-length M.2 2280 drives won't fit: ultrabooks, compact laptops, thin clients, and small-form-factor desktops with a 42mm socket. Its B+M key edge connector keeps it compatible with both B-key and M-key SATA slots, and sequential reads reach up to 550MB/s - the practical ceiling of the SATA III interface. Transcend pairs 3D TLC NAND with an SLC cache layer, so bursts of writes land in fast pseudo-SLC first and system responsiveness holds up during app launches and file copies. A RAID engine plus…
SpecPicks Verdict
SpecPicks scored Transcend MTS425 2TB M.2 2242 SATA III SSD using a rating × review-volume × price-fit model applied to published specs and reviews across the ssds & storage category. Transcend's ssds & storage lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for ssds & storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Will this fit my laptop's M.2 slot?
It is an M.2 2242 drive, meaning 42mm long, with a B+M key connector. Your machine needs a 42mm M.2 slot wired for SATA, not NVMe. Measure the existing drive or check your laptop's service manual before ordering.
How fast is the Transcend MTS425 2TB?
Transcend rates it at up to 550MB/s, which is the practical ceiling of the SATA III interface. An SLC cache layer handles write bursts, so short transfers finish faster than sustained ones once the cache fills.
Is the Transcend MTS425 a good drive based on owner feedback?
It is well-regarded by owners, which is strong for a niche 2242 SATA drive.
What warranty comes with it?
Transcend includes a three-year limited warranty. Registration requirements and claim procedures vary by region, so check the product listing and Transcend's support site for the terms that apply where you live.
Can I monitor the drive's health after installing it?
Yes. Transcend ships SSD Scope, a free utility that reports drive condition, runs diagnostics, and handles performance optimization so you can catch a failing drive before it takes your data with it.
Key Features
- Built-in SLC caching technology for exceptional transfer speeds. Saves loading times and boosts system responsiveness
- RAID engine and LDPC coding. Detects and corrects transfer errors to prevent data corruption
- DevSleep. Intelligently shuts down SATA interface when not in use to prolong device's battery life
- Transcend SSD Scope is advanced, user-friendly software that makes it easy to ensure your Transcend SSD remains healthy, and continues to run fast with no errors. It determines the condition and optimizing the performance of your drive.
- Three-year Limited Warranty
Full Specifications
| Brand | Transcend |
|---|---|
| Color | Green |
| Model Name | MTS425S |
| Read Speed | 550 Gigabytes Per Second |
| Unit Count | 1.0 Count |
| Form Factor | M2 SATA 2242 |
| Media Speed | 500 |
| Model Number | TS2TMTS425S |
| Compatibility | PC |
| Built-In Media | Solid State Drive |
| Hard-Drive Size | 2 TB |
| Mfr Part Number | TS2TMTS425S |
| Number of Items | 1 |
| Special Feature | Shock Resistant |
| Installation Type | Internal Hard Drive |
| Compatible Devices | Desktop, Laptop |
| Data Transfer Rate | 550 Megabytes Per Second |
| Enclosure Material | 3D Tlc Nand Flash |
| Additional Features | Shock Resistant |
| Hard Disk Interface | Solid State |
| Full listing title | Transcend MTS425 2TB M.2 2242 SATA III SSD, Up to 550MB/s, Compatible with Ultrabook, Laptop, PC, Desktop, 3D TLC NAND Flash Internal Solid State Drive, LDPC Error Correction, SLC Cache, B+M Key |
Ready to buy?
Transcend MTS425 2TB M.2 2242 SATA III SSD, Up to 550MB/s, Compatible with Ultrabook, Laptop, PC, Desktop, 3D TLC NAND Flash Internal Solid State Drive, LDPC Error Correction, SLC Cache, B+M Key is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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