With the UD70 series, Silicon Power is proposing another interesting M.2 NVMe drive, utilizing a Phison controller, RAM cache and QLC 96-layer ICs for storage. The manufacturer is also advertising an optimized power management feature for keeping the drive cool (active state power management and autonomous power state transition), in order to be used successfully on laptops with less than ideal cooling systems as well.

The product is shipped inside a cardboard enclosure with a small window, for being able to see how the drive does really look like and not a drawing. Here we will note that Silicon Power has mentioned NVMe 1.3 standard support, the total storage capacity but also the fact that it sports a 5-year limited warranty:

On the back side we will note some technical specifications such as the power rating, details regarding the Silicon Power offices but also the product internal code name and serial number:

For additional safety, the drive is kept steady inside a transparent plastic mold:

As we have seen with other Silicon Power M.2 SSDs, the frontal area of the PCB is entirely covered by a large sticker, which also helps with faster heat evacuation; on it we will note the product internal code name, the product name but also the capacity and serial number:

Surprisingly, on the back side of the PCB we are noticing place holders for four additional NAND ICs and a RAM cache but none of which are populated:

The removal process of the top sticker is an easy task and by this way we will expose the drive components: four NAND ICs, a controller but also a RAM cache

The main controller is a Phison PS5012-E12S-32, with support for QLC flash and PCI Express 3.0 x4 interface. It is using no less than eight flash channels and is produced on 28nm at TSMC:

For RAM caching we will spot a single DDR3-L 1866 IC with a capacity of 256MB, which will be mainly used by the controller in order to store the map tables:

The four NAND Flash chips use the QLC technology and are manufactured by Micron: