The SATA power connector is a type of electrical connector used to supply power to devices like hard drives and solid-state drives in computers. It typically has 15 pins, allowing it to deliver multiple voltages, including +3.3V, +5V, and +12V, which are essential for the operation of modern storage devices. This connector is designed to be easy to use, with a slim profile that helps improve airflow within computer cases. The SATA standard has largely replaced older power connectors, such as Molex, due to its efficiency and compatibility with newer technology.