Home > Reviews > Plextor M5S 128GB Review

Plextor’s M5S 128GB SSD hits our benchmarking tables today, promising reliability and good value. How does the legendary ODD manufacturer fares in the SSD market?


Plextor M5S
Plextor M5S

Most enthusiasts would remember Plextor from the days when optical disk drive (ODD) speed and quality actually mattered, as their products were considered to be top-of-the-line at the time. As optical drives are nowadays unimportant, even obsolete for some users, Plextor had to diversify and decided to jump into the SSD bandwagon. The company has been producing SSDs ever since 2010 but, as Plextor has never been fond of excessive marketing, it is no wonder that more than half of the computer users nowadays do not even know that they produce SSDs. Today we are having a look at the M5S, the latest value-oriented offering of the company, sporting a Marvell controller and synchronous memory.

Marvell 9187
Marvell 9187

Manufacturer features and specifications

DRAM Cache 256MB DDR3
Read/Write Speed (Under Windows NTFS)
Sequential Read Speed
(SATA 6Gb/s)
Up to 520 MB/s
Sequential Write Speed
(SATA 6Gb/s)
Up to 200 MB/s
Random Read Speed
Up to 71,000
Random Write Speed
Up to 51,000
Power Consumption
Active 2.8W
Idle 0.7W (typical)
Environment and Reliability
Temperature 0°C ~ 70°C (Operating)
Shock 1500G, At 1 msec half-sine
Vibration 7 ~ 800Hz, 2.17Grms (Operation)
MTBF 1,500,000 hours
Warranty 3 years Plextor’s Warranty Service
Operating System Supported Microsoft Windows Family / Linux / Mac OS
Agency Approval UL, CE, BSMI, WHQL, RoHS
Command Set Support TRIM, S.M.A.R.T., NCQ, ATA/ATAPI-8
DATA Encryption Supported
Firmware Upgrade Supported
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 (W/L/H) 69.85mm x 100mm x 9.5mm
Weight 2.54 oz / 75g (Max)
Package Contents
Drive 64GB/128GB/256GB SSD
Document Quick installation guide Users manual and warranty statement


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