MyDigitalSSD BP4 120GB SSD

Here we get our first look at the MyDigitalSSD BP4. These drives are so new they shipped without a label and we later received the sticker just prior to the review. I'm sure MDSSD will do a much better job at getting the label straight, something I could use some practice doing.

There really isn't much to see on the outside since SSDs are all about the internal components.

BP4 is a 7mm drive, the first from MyDigitalSSD. All of the mounting points are in the correct location for a 2.5" form factor HDD/SSD. The 7mm variant reduces the height from the top so even if your notebook is built for a 9.5mm z-height drive, the BP4 will work in its drive sled.

MDDSSD used the newest in flash technology, 19nm Toshiba Toggle 2 with 16K page sizes. At the time of writing there are only a small handful of SSDs shipping with this flash - SanDisk Ultra Plus, Plextor M5 Xtreme and the BP4.

The 240GB BP4 used PSC DRAM, 256MB of it, but the 120GB BP4 uses Nanya DRAM and the size drops down to 128MB. The DRAM is right next to the Phison S8 controller to reduce latency.

There are sixteen NAND flash chips, eight on each side. This increases the parallel I/O operations and thus increases performance.