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From the manufacturer
Features

3D expansion to break through limits
Unlike the existing planar NAND chips, 3D NAND flash is a type of flash memory in which the memory cells are stacked vertically in multiple layers. 3D NAND is developed to break through density limitations of the 2D planar NAND, and thus can deliver a greater level of performance and endurance.

Perfect for your Ultrabook
Compliant with M.2 form factors Type 2242 and 2280, Transcend’s 3D NAND M.2 SSDs are perfect for use in Ultrabooks and lightweight notebooks. Measured at just 42mm in length, the M.2 SSD 420S makes for an easy upgrade to your computer, taking up little space while giving it a much needed energy boost.

Superior transfer speeds
Featuring the M.2 standard (42mm), the next generation SATA III 6Gb/s interface and a powerful controller, Transcend’s M.2 SSD 420S reaches incredible read and write speeds of up to 500MB/s and 430MB/s. When used as a cache, the M.2 SSD 420S provides 1.5 times faster boot time than conventional hard drives.

High IOPS to speed up loading times
Dedicated to maximizing high-performance computing, the M.2 SSD 420S features 4k random file read and write speeds up to 75,000 IOPS that deliver incredibly short loading times and almost instant response for heavy graphics and multimedia applications.

Store more in less space
The M.2 form factor enables expansion and integration of functions onto a single form factor module solution. M.2 SSDs include a smaller form factor but with larger capacities than that of mSATA and half-slim SSDs.

SSD Scope software
Transcend SSD Scope is advanced, user-friendly software that makes it easy to ensure your Transcend SSD remains healthy, and continues to run fast and error-free by determining the condition and optimizing the performance of your drive.

Guaranteed quality
Transcend’s solid state drives are built to the highest standards and rigorously tested, and offer outstanding quality, performance, and reliability.
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Customer Reviews
4.4 out of 5 stars 2,654
4.6 out of 5 stars 1,385
4.6 out of 5 stars 813
4.6 out of 5 stars 338
Price
£16.84£16.84 £24.16£24.16 £11.97£11.97 £38.32£38.32
Capacity
120GB ~ 240GB 128GB ~ 512GB 120GB ~ 960GB 128GB ~ 1TB
Interface
SATA III 6Gb/s SATA III 6Gb/s SATA III 6Gb/s SATA III 6Gb/s
Form Factor
M.2 Type 2242 M.2 Type 2242 M.2 Type 2280 M.2 Type 2280
Flash Type
3D NAND flash 3D NAND flash 3D NAND flash 3D NAND flash
Max. Sequential Read/Write (CrystalDiskMark)
R 500MB/s, W 430MB/s R 560MB/s, W 500MB/s R 550MB/s, W 500MB/s R 560MB/s, W 500MB/s
Max. 4K Random Read/Write (IOmeter)
R 40,000 IOPS, W 75,000 IOPS R 80,000 IOPS, W 85,000 IOPS R 70,000 IOPS, W 75,000 IOPS R 85,000 IOPS, W 85,000 IOPS
DDR3 DRAM Cache
– no data
✓
– no data
✓
Technology
TRIM & NCQ command, S.M.A.R.T., Advanced Garbage Collection, DevSleep mode, RAID engine, LDPC coding TRIM & NCQ command, S.M.A.R.T., Advanced Garbage Collection, DevSleep mode, RAID engine, LDPC coding TRIM & NCQ command, S.M.A.R.T., Advanced Garbage Collection, DevSleep mode, RAID engine, LDPC coding TRIM & NCQ command, S.M.A.R.T., Advanced Garbage Collection, DevSleep mode, RAID engine, LDPC coding
outstanding Speed: The MTS420S SSD offers outstanding read and write speeds, significantly enhancing your system’s performance
Advanced Data Security: The MTS420S features AES 256-bit encryption, ensuring your data remains safe from unauthorized access
High Endurance Levels: Designed for high-performance applications, the MTS420S offers outstanding endurance for demanding workloads
User-Friendly Installation: The MTS420S supports easy installation processes, making upgrades simple and quick for users
Compact Design: The MTS420S features a compact form factor, allowing it to fit seamlessly into various devices without sacrificing performance
Consistent Performance: The MTS420S ensures reliable performance under various workloads, making it suitable for both personal and professional applications
Customers say
Customers find the SSD drive works well, particularly in ThinkPads, and appreciate its serious performance improvement. The drive receives positive feedback for its quality, speed, and ease of installation, with one customer noting it operates between 35 and 55 degrees Celsius. They like its capacity, with one mentioning it boosted storage from 16GB to 128GB, and consider it good value for money. Compatibility receives mixed reviews, with some customers reporting it’s incompatible with many motherboards.
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Great little SSD
Solid upgrade at a great price. I’d been battling with a cramped 16GB SSD on a modded Chromebook running Linux as a Plex server, so this was a welcome improvement. At just £19 when I picked it up, it’s excellent value—especially for a less common SATA standard in such a compact form factor. I chose the same make and model as the original for peace of mind, and cloning the drive went smoothly. It’s now running perfectly with no noticeable performance drop—and the added capacity makes a world of difference.
Fast delivery. The quality seems really solid.
Very fast delivery and excellent product quality. 👌
SSD upgrade for Netgate SG-2100
This one is a perfect match for Netgate SG-2100 firewall, so if you’re looking for an SSD that will fit without having to lift the MB from the heatsink to move the studs for different SSD size invalidating warranty, this is the correct one to fit. Tested on my own 2100, worked first time, so 120Gig certainly supported if you’re wondering.Been in for a few months now, no issues.
reasonably priced for a hard to find form factor
Been struggling with a tiny 16gb ssd on a chromebook modded to run linux, at £16 at time of purchase I got to say it was reasonably priced give that its a lesser used sata standard and in one of the smallest form factors, couldn’t find one cheaper new or used.running perfectly fine no noticeable difference in speed from the one it replaced and it’s a much larger capacity
First one didn’t work but replacement did work on iOTA 2310 and fits slot perfectly
Can’t get it to be recognized on the iota 2310 (aka Linx 14) even though it’s a perfect fit for the socket please let me know what’s wrong thanks
A quality M.2 SSD, a product which you can trust
I wanted an SSD for my HP Mini 300-050 Desktop computer which had an empty M.2 slot. It already had a hard-drive but I wanted to move the operating system onto an SSD to improve performance. I have had Transcend products before and always found them to be reliable. So in my search for a small form factor 22×42 which was the only card size my computer could fit, I found this trusty Transcend SSD card at a very affordable price. It is working perfectly and operates between 35 and 55degrees C. The startup times are transformed and other operations are swift. A great product.
Incompatible with many motherboards
The disc does work(e.g. in a USB adapter), but is incompatible with a lot of motherboards, including laptop motherboards. Not being detected by BIOS.
Easy Install
Got to upgrade a 32gb eMMC Laptop which had a M2 ssd slot.Installation was easy.However, there are no instructions what to do next but fortunately I have some experience using Windows.After install it does not show up as a new hard drive you have to open Disk Management select the drive to initialise as simple volume. Once this has been done it shows up under file manager as a new drive ready for use.Now setup laptop to install new programs to the M2 ssd drive leaving the original 32gb eMMC drive for new installations of Windows 10 as the are released.
Very useful for old laptops which has m.2 2242 ssd slot with decent read and write speed.
この420SはDRAMレス。430SのDRAMキャッシュ付きのほうが高性能だが、SATAタイプ、しかも11.6インチ超小型ノートPCならばそんなに変わらないと割り切って購入。 USB-CポートにUSBスティックのSSD(10Gbps)付けるよりも起動、シャットダウンが早い。ベンチマーク値そのものはUSBスティックのほうが高いけれどこのSSDもランダムアクセスは見劣りしなかった。 シーケンシャル R 546MB/s W 435MB/s ランダム R 99.31 W 191.21MB/s これならばシステムドライブとして申し分ない。 温度センサーも固定ではなく、ちゃんと動作する。ノートPCに最初から入っていたSSDはアジア系ブランド、しかも温度センサー固定(常に40度)、使用中の温度上昇に気づかず、動画エンコード後に熱死という残念な結果に終わった。 240GBという容量、少なめに感じたがOSインストール後も170GB近くあり、オフィスソフトのような事務系ソフトを入れるには十分すぎた。 今やM.2 2242自体が少数派の規格、SATAに関しては選択肢はわずか数種類、メジャーブランド製はTranscendだけなのが現状。2280タイプならば500GBの価格なので割高に感じたが、なにもかもがまともだ。ケチらなくて正解だったと感じた。
I bought this to expand my storage on a cheap laptop that only had 32GB storage memory and 4GB RAM, neither of which could be replaced but there was an M.2 slot that I’d ignored until this became my main device again. With room to breathe, she’s like a brand new machine. Windows updates all done, page file set to maximum, it’s a dream!I cloned the old C: drive on to this SSD, expanded the volume and then set the BIOS boot order to use this new drive before formatting the old, tiny drive. If this is what you are trying to achieve, it was easy enough to do and a quick web search will point you to the software/instructions on how to do this so I won’t detail it here.All good so far, and no complaints at all. 10/10
Me llegó mucho antes de lo esperado. La empleé para sustituir una unidad de solo 32 GB en una HP y funciona de maravilla. Altamente recomendable.
Ho acquistato questo SSD per sostituirlo su un laptop che aveva il disco in avaria. A un prezzo estremamente competitivo e usufruendo della spedizione veloce di Amazon – impeccabile, nel breve tempo di 24 ore sono riuscito ad effettuare la riparazione, ripristinando la funzionalità del PC che per me aveva carattere d’urgenza. Non solo: ora il mio laptop è equipaggiato con un SSD di qualità e capacità doppia rispetto a quello precedente; non credo che senza Amazon sarei riuscito ad ottenere altrettanto in termini di servizio, qualità e prezzo. Perciò da parte mia i complimenti sono sinceramente dovuti, al di la di ogni tono adulatorio di circostanza.