SSD (Solid State Drive) units are storage devices that store files and programs just like hard disk drives, but use flash memory chips to store data, instead of storing data on a magnetic disc. Because data is stored electronically rather than magnetically, SSDs are way faster than hard disk drives for two reasons. First, no conversion between magnetic information into electronic information is needed. And second, there are no mechanical parts, so data is readily available, while on hard disk drives you need to wait until the heads move to the area where data is stored, which takes some time. In this short tutorial we will show you how SSD units look like inside and what are their main components.