REVIEW: Transcend MTS420S a SSD M.2 2242 3D TLC

Transcend MTS420S is the M.2 SSD disk that we present today in its review, the model that we analyze in this occasion has a classic format of length 2242 and we will test its version of 120 GB but it also has several models up to 480 GB. This is an M.2 SSD disc from the popular Transcend brand that also mounts quality 3D TLC memory, we will see in our tests how it works. Without further ado let’s see how this popular SSD M.2 disk works in our Review.

  • The SSD M.2 disk Transcend MTS420S is avalilable in ony for $36.99.
Transcend MTS420S review a02 min


Model Transcend MTS420S
Datos principales Format: SSD M.2 2242 disk
Interface: SATA III (6gbps)
Capacity: 120/240/480GB (120GB in review)
Type of memory: 3D TLC
Controller: SM2258XT
Working live: 1.000.000 Hours

Package content

The SSD M.2 Transcend MTS420S disk comes in a package with plastic and cardboard protection to avoid shocks in transport, the fixing screw is not included. If we look at the motherboard we found the SM2258XT controller a very widespread product in this type of devices. As storage we have 3D TLC of the same brand in two modules.



First we check the data of the Transcend MTS420S SSD M.2 with the CrystalDiskInfo Software where we can see and contrast the specifications of this SSD M.2 SATA III. The data is correct and matches the advertised, we have 120 GB capacity and SATA / 600 interface with SMART, APM, NCQ and TRIM support.

Transcend MTS420S review 01 min


We perform this classic test in the Transcend MTS420S where we can see that at the reading level maintains the type in front of a Samsung 850 EVO 250 GB. At the level of sequential reading and writing it has good results for this format, there is something of a drop in the writing results in general.

Anvil’s Storage Utilities

We passed this test in the Transcend MTS420S and compared the results with the popular Samsung 850 EVO 250GB model. As we see the results are maintained and we are facing a SSD with good performance level.

AS SSD M.2 Benchmark

On the Transcend MTS420S we passed the AS SSD M.2 Benchmark test and compared it with the results of a Samsung 850 EVO 250GB disk. In this test the performance of this disk SSD M.2 we have similar results in reading and how it seemed are lower in writing in all aspects.


In this benchmark you can see how the Transcend MTS420S works against others SSD M.2 models that are now popular in the market. The values are correct, although in sequential writing they are somewhat lower, for the price is acceptable.

Transcend MTS420S review 06 min

  • Read/Write SEQ
    These data refer to the processes we do when copying a specific file continuously, for example when copying or writing a large file such as movies or ISO discs. This value defines the continuous transfer rate, which is important for storage units.
  • Read/Write 4K
    This data refers to the random accesses that the disk makes to files of size 4K. This data is significant because it defines for example how the OS can read system files or accessing small files, an important information to feel the system more fast.



Aftet perform all tests on the Transcend MTS420S M.2 SSD, we can say that this is a product with a price and performance acceptable for classic use. We have correct results in sequential reading speeds and somewhat low in writing, no doubt any eMMC memory speed or mechanical HDD disk. Speeds that are similar to other SSD disks in the same format and that offer us a superior brand guarantee to Chinese models if we do not want to risk.

An SSD M.2 disk with a good price and correct features, if we want to expand a mini PC or a laptop with little internal memory in a simple way and it is an alternative if we are lucky with compatibility. You can compare this disk with other models of cheap SSD M.2 discs at or

Where to buy

  • The SSD M.2 disk Transcend MTS420S is avalilable in ony for $36.99.

Transcend MTS420S review a01 min

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