An SSD lets you store data such as movies, photos, and text documents. SSDs are much faster than traditional hard drives, letting you boot your software much faster. An SSD doesn't contain any moving parts, making it less susceptible to drops and bumps. This means your data is better protected. SSDs come in different sizes. Pay close attention to which size suits your needs. An SSD with storage capacity of 2TB lets you save about 200 HD movies, for example. Some SSD were made to handle more reads and writes in order to increase their lifespan. These are the so-called pro variants.