What is the role of the SATA interface on a hard drive PCB?

The SATA interface on a hard drive PCB connects the hard drive to the computer's motherboard, allowing for data transfer between the two. SATA stands for Serial Advanced Technology Attachment, and it is a type of interface that uses a serial communication protocol to transfer data between devices. The SATA interface on a hard drive typically consists of a set of pins or connectors that are used to connect the hard drive to the motherboard's SATA port. The interface allows for high-speed data transfer between the hard drive and the computer, making it a critical component for the performance and functionality of the hard drive.