[REVIEW] Plextor S3G M.2 SATA SSD – Performer Without Breaking The Bank

When flash storage price becomes more affordable, it has become a standard storage option out-of-box for Notebook or pre-built PC system. The boot and loading speeds have shortened drastically compared to a mechanic HDD.

Flash storage is getting faster and smaller in size thus there are different sizes for different form factor Notebook/Desktop

Here are a few common SSD types available in the market

▪ 2.5-inch SATA SSD
▪ M.2 NVMe SSD

Thanks to Plextor for sending us the Plextor S3 M.2 SATA 2280 SSD for review. This is a 256GB SSD is retailing at around RM 350 – RM 399. There are different sizes of M.2 SATA, 2242, 2260 and 2280. The 42, 60 and 80 are actually the length size mm for different notebook and mainboard.


The packaging of the Plextor S3 M.2 comes in a plastic pack and included a small screw to hold the SSD on the mainboard.

On the front packaging mentioned the Read/Write speed and IOPS for different capacity.

You can see the M.2 SATA SSD uses NAND Flash Hynix 14nm TLC chip and it’s very small and compact placed next to a standard USB Flash Drive.

The connector of the M.2 SATA SSD and M.2 NVMe SSD are different so you will not able to slot a M.2 NVMe SSD onto the standard M.2 SATA SSD. M.2 SATA has 2 notches where the M.2 NVMe has only 1.

I was planning to test it on my HP Elitebook G1 which has M.2 SATA slot, unfortunately, it only supports 2260 which is shorter than 2280.

Can slot it but cannot close. Thus I would advise you to check your Mainboard/Notebook’s user manual to see whether it support M.2 and which size/type of M.2.

Because I do not have any mainboard or notebook that support it, I bought a M.2 SATA tray from Sandisk. Due to M.2 SATA SSD, it still has bandwidth limitations of SATA interface at 6Gbps thus there wouldn’t be much different to connect to M.2 SATA connector directly.

If you are using it directly onto your Mainboard/Notebook, you are required to enable it in BIOS to be recognized as storage in order for you to install OS or using it as secondary storage.

Below are the performance speed tests comparing it to a Toshiba USB 3.0 Flash Drive,  Toshiba 2.5″ 500GB 7,200rpm HDD and Transcend 128GB 2.5″ SATA SSD on CrystalDiskMark.

Toshiba USB 3.0 Drive

Toshiba 2.5″ 500GB 7,200rpm Mechanical HDD

Transcend 128GB 2.5″ SATA SSD

Plextor S3G 256GB M.2 SATA SSD

Flash Storage advantages on reading and writing speeds over mechanical HDD. I was surprised to know that the Plextor able to perform faster as per claimed (550MB/s & 510MB/s)

From the tests above we can conclude that Plextor S3G M.2 SATA SSD is a great option for storage expansion without breaking the bank at the same time without showing poorer performance.

Because of the small factor size, it can be used on a pocket-friendly enclosure that works as an ultra-fast external storage that mobile

▪ Reasonable Price
▪ 3 Years Warranty
▪ M.2 Size Allows More Connector Options (M.2 Slot, SATA Tray, Small USB Type-C Enclosure)

▪ TLC NAND Flash

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