A unit of solid drive or SSD (solid-state drive) is a data storage device that uses non-volatile memory such as flash memory or a volatile memory such as SDRAM to store data instead of the dishes magnetic rotating conventional hard drives. It's called NAND.
Its main advantage over conventional hard drives are solid state drives are:
- less sensitive to shock,
- are practically inaudible
- have lower access time and latency (are faster ..)
- battery consumption is less
SSDs use the same interface as hard drives and are easily interchangeable without having to use adapters or expansion cards to match them with the equipment. Being fairly immune to external vibrations are well suited for installation in vehicles, laptops, tablets, phones, etc..