Plextor PX-M5S 256GB SSD
The drive itself looks identical to the M2 model we reviewed quite some time ago.
On the back we found the model and serial number as well as the capacity size.
We've seen this case from Plextor on several occasions.
The SATA power and data ports are located where they should be as well as all of the mounting locations. You will not have an issue running this drive in your notebook. Desktops will require an adaptor bracket in most cases and this drive is not qualified for use in notebooks/ultrabooks requiring 7mm Z-height.
Inside we found the Marvell 88SS9174-BLD2 controller paired with dual Nanya DRAM with 256GB capacity each for a total of 512MB DRAM.
Micron NAND flash ICs are new for Plextor and this capacity size uses sixteen total, eight on each side.