Data transfer rate is an important parameter to measure the speed of hard disk. It has a great relationship with rotational speed of hard disk, interface type and system bus type. It means the speed of computer that actually finds the corresponding data from the hard disk and transfers them to memory. It is measured by transmission of bytes per second (MB / s).
A disk drive’s data TRANSFER rate is a summary performance number combining the physical aspects of data access with the electronic aspects of data transfer to the disk controller or system.
A data transfer rate is the quantity of data that can be transferred from one point to another within a given time frame.
