Toshiba OCZ RD400 PCIe NVME SSD Review - Product Showcase

So once we remove the one screw we notice the SSD partition hidden under the sticker we remove. 
 

Here we can see the PCB a little better and see the Toshiba controller (we know little about it). 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. 
 

Let me photoshop a bit to make the inscription visible, there .. the th58ftijflbaeg NAND memory in use is Toshiba MLC Stacked Vertical NAND fabbed at 15nm. You will find just two of these of these at the front-side this holding 256GB per NAND chip. Yeah that stacked NAND cells for you matey, otherwise you just cannot get so much storage volume in there.
 

Also a Samsung K4E4E324EE-EGCE LPDDR3 4Gb DRAM (512MB) chip is present for caching.  
 

Fast and fasted combined ... that's  alot of money right there.