The main advantage of using SSDs (Solid State Drives) over traditional hard drives (HDDs) is their significantly faster data access and transfer speeds. SSDs use flash memory to store data, eliminating the mechanical parts found in HDDs, which results in quicker read and write times. This speed advantages translate to faster boot times, reduced application loading times, and improved overall system responsiveness. Additionally, SSDs are more durable, consume less power, and produce less heat compared to HDDs, making them a superior choice for modern computing needs.