What technology standard is commonly used today for hard drives?

Solid-state drive (SSD) is the commonly used technology these days for hard drives. It has pretty advantages over hard disk drive (HDD).

One advantage is, its speed is unmatchable to HDD and the data is stored in microchips. Unlike HDD, which uses a mechanical arm with a read/write head to move around and read information from the right location on a storage platter, it collects information directly from microchips. It is simply the oversized version of USB stick. More reliable and sustainable.