Plextor S3C 128GB/256GB 2.5″ SATA SSD Drive

  • Up to 550 MB/s Sequential Read
  • Up to 520 MB/s Sequential Write
  • Up to 92K IOPS Random Read
  • Up to 79K IOPS Random Write



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 550/520 MB/s with random read/write speeds of 92K/79K 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, 256GB and 512GB. 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.

Exclusive Technologies




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.



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.



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 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 )

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 Slim

7mm SSD is perfectly compatible with desktops and notebooks

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.

Specifications & Technical Details [May vary to capacity]
Performance (Under Windows NTFS)  
Sequential Read Speed* Up to 550
Sequential Write Speed* Up to 510
Random Read Speed* Up to 90,000
Random Write Speed* Up to71,000

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

Capacity 256GB
Cache 512 MB DDR3
Controller SMI SM2254
NAND Flash Hynix 14nm TLC
Environment and Reliability  
Power Requirement (Max.) DC 5V 1.5A
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) 100
Warranty 3-Year
Operating System Supported Microsoft Windows OS / Linux OS / Mac OS
Command Set Support GC TRIM, S.M.A.R.T., NCQ, ATA/ATAPI-8
Interface SATA 6.0 Gb/s, compatible with SATA 3.0/1.5Gb/s
Firmware Upgrade Support
Form Factor and Connectors  
Form Factor 2.5 inch form factor
Power Connector 15-pin SATA connector for DC 5V input
Data Connector 7-pin SATA Connector
Dimension and Weight  
Dimension (L x W x H) 100 x 69.85 x 6.8 mm / 3.94 x 2.75 x 0.27 inch
Weight (Max.) 60g / 2.12oz
Highlight Features  
Features PlexNitro, PlexTurbo, PlexCompressor, PlexVault
Package Contents  
Drive 128 GB / 256GB / 512 GB
Document Quick Installation Guide

Additional information


Check product description page for more technical details