Samsung is one of the largest tech corporations in the world. Based out of South Korea, it is the main company that runs their economy. A frenemy of Apple, they have tried to sue each other multiple times over the decades and yet do millions of dollars of business together. Aside from the finished products Samsung is placing in the market they have a host of internal components that they produce. Even their own products have a mix of components, some theirs and others produced by outside companies. One of the largest producers of RAM they have also used the same Flash Memory based technology for their Solid State Drives (SSD).
These drives are based on the same kind of circuitry that is used for Flash Memory such as RAM chips and USBs. The lack of moving parts makes the read and write times a lot faster than traditional hard drives. SSDs are still available with older porting options so they can easily replace a traditional hard drive. With a range that has newer interfaces for the next generation of computers. The Samsung SSD is available in different capacities and can be from 500GB to 4TB.
The NAND based risk
SSDs based specifically on NAND Flash technology will leak data over time if they have passed their 'endurance rating' period and loose all power from their internal capacitors which keep the information safe. The endurance rating is the number of write cycles the SSD can take, this number is usually in the thousands so there is a lot of usage before a drive gets there. If an SSD has reached its endurance rating and is not used once in a while to maintain some power in its capacitors, it will start losing data. The rate varies but it can start after 1 year at 30 degrees Celcius, or after 2 years if it is at 25 degrees.
Which capacity of the Samsung SSD line you choose to purchase depends on the amount of space you need. SSDs have been getting cheaper over time but are still very expensive drives, at the top end of the price range.