Plextor M8Se 512GB PCIe NVMe SSD review

Memory (DDR4/DDR5) and Storage (SSD/NVMe) 367 Page 5 of 19 Published by

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Product Showcase (Innards)

 

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So once we remove the screws we notice the SSD M.2 partition hidden under the heatsink we remove.  Basically your PCIe daughter-board with an M2 SSD. As you can see it is properly cooled by thermal-padding leading towards the nice looking heatsink.
 

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Here we can see the PCB a little better and see the Marvell controller. With these you get the full TRIM support and garbage collection under Windows 7/8/10 or deleting files off, will result in LBAs being TRIMed. If you look all the way upwards you can see a LED array, this reacts to writes and reads, in idle the LEDs fades in and out.  We do not spot any extra data-protection here in case of a power failure. 
 

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Toshiba TH58TFT1WHLBAEG. The NAND memory in use is Toshiba fabbed TLC Stacked Vertical NAND at 15nm. You will find just two of these at the front-side holding 256GB per NAND chip. Yeah that's stacked NAND cells for you matey, otherwise you just cannot get so much storage volume in there.
 

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Also what seems to be a LPDDR3 4Gb DRAM (512MB) chip is present for some xtra DRAM caching.  
 

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And down below as close as possible to the interface the controller, hard to read out but that is a Marvell 88SS1093 controller that offers hardware automated NVMe 1.1 support and 15nm TLC/MLC/SLC and 3D NAND.

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