Plextor S3G 128GB M.2 SSD PX-128S3G

(£34.80 inc VAT)
Short description:
Sequential Read Speed* Up to 550MB/s
Sequential Write Speed* Up to 500MB/s
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New processes for advanced components

Only the latest components were selected for the S3 series namely, Hynix's advanced 14nm process triple level cell NAND flash memory, and SMI 2254 controller. These components combined allows the S3 Series to deliver sequential read/write speeds of 550/510 MB/s with random read/write speeds of 90K/71K IOPS. Compared to the sluggish and traditional hard drives, this is a remarkable level of performance. Despite being entry-level devices, their professional quality standard is nonetheless worth noting.

Real capacity of high speed cache

Use the SSDs full storage capacity! The proprietary industry-leading PlexNitro technology uses SLC cache design, which means the S3 does not need to reserve over-provisioning space, thus leading to accelerated read/write speeds. This means the users can use the full capacity of the drive. Take 128GB SSD as an example: after deducting the over-provisioning space used by other brands, only about 120GB of space will be left. With the PlexNitro performance optimization technology,however, the full 128GB of space can be used, with no reduction at all.

Ideal for custom PC building and upgrades

The S3 series comes in two form factors - SATA 2.5-inch (S3C) and M.2 2280 (S3G) and offers 3 capacity options: 128GB and 256GB. It can fully satisfy the installation requirements of desktop and laptop devices, as well as other devices that use SSDs. This makes the S3 series the most flexible choice.

Performance (Under Windows NTFS)  
Sequential Read Speed* Up to 550
Sequential Write Speed* Up to 500
Random Read Speed* Up to 72,000
Random Write Speed* Up to 57,000

* Performance measured using CrystalDiskMark ver.3, IOMETER with queue depth set to 32.
Test Platform: Motherboard: ASUS P8P67 PRO (Windows 7 x64) 

Capacity 128 GB
Cache 256 MB DDR3
Controller SMI SM2254
NAND Flash Hynix 14nm TLC

Environment and Reliability  
Power Requirement (Max.) DC 3.3V 2.0A (Max.)
Temperature 0°C ~ 70°C / 32°F ~ 158°F (Operating)
Shock 1500G (Max.), at 1 msec half-sine
Vibration 7 ~ 800Hz, 3.08Grms (Operating)
MTBF 1,500,000 hours
Endurance (TBW) 50
Warranty 3-Year

Operating System Supported Microsoft Windows OS / Linux OS / Mac OS
Command Set Support TRIM, S.M.A.R.T., NCQ, ATA/ATAPI-8
Interface M.2 SATA 6.0 Gb/s
Firmware Upgrade Supported

Form Factor and Connectors  
Form Factor M.2 2280
Power Connector M.2 connector for DC 3.3V input
Data Connector M.2 connector

Dimension and Weight  
Dimension (L x W x H) 80 x 22 x 2.3 mm / 3.15 x 0.87 x 0.09 inch
Weight (Max.) 10g / 0.35oz

Highlight Features  
Features PlexNitro, PlexTurbo, PlexCompressor, PlexVault

Feature Spotlight

  • Performance Optimization

    Exclusive PlexNitro firmware optimizes performance in SLC mode without taking up SSD space

  • Data Accuracy

    Latest LDPC technology guarantees data accuracy & SSD reliability

  • Ultra Compact

    Small form factor SSD particularly fits ultra-portable mobile applications

  • Advanced Endurance

    Mean Time Between Failures (MTBF) of 1.5 Million Hours

  • High Speed

    Take hardware performance to the practical maximum speed of the interface

  • Shock & Vibration Proof

    Capable of withstanding shock and vibration movements

  • Heat Resistant

    Capable of withstanding high operating temperatures

  • Silent Operation

    Running silently with no moving parts to eliminate distracting noise

  • Energy Efficient

    SSDs use less power than hard drives, promoting a longer battery life

  • Speed Boost

    With PlexTurbo, data processing speed increases far more than tenfold

  • Life Extension

    With PlexTurbo, SSD lifespan can extend by eliminate unnecessary writes

  • Larger Storage Space

    With PlexCompressor, compress files automatically in the background to help SSDs release more available capacity

  • Privacy Control

    With PlexVault, create private spaces without a trace that can store sensitive or confidential files

Exclusive Technologies


  • PlexVault


    PlexNitro, Plextor’s exclusive cache acceleration technology, is developed especially for TLC SSD. Utilizing so called PlexNitro Cache as a buffer to improve the read and write speeds of TLC SSD, without taking away from user capacity as over provisioning. Plextor remains committed to providing the “Full Capacity” SSD products of 128GB, 256GB, and 512GB instead of 120GB, 240GB, and 480GB.

  • PlexVault


    Plextor's PlexVault software is aimed to provide a more secured space and complete control privileges to users. Even if you are using a computer with others, you can still store your private data via PlexVault, safely and securely hidden on the computer, as long as the computer is equipped with a Plextor SSD.

  • PlexCompressor


    The storage capacity of SSDs is always a key point of consideration. Plextor's PlexCompressor utilizes custom, smart-compression technology that gives the user more storage capacity without impacting user experience and system performance.

  • PlexTurbo


    PlexTurbo is an intelligent SSD RAM caching solution using system RAM to accelerate SSD storage performance. It boosts the service life of the SSD while vastly accelerating access speed performance.
    ( Recommend DRAM capacity: 32GB )




New features


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