What voltage is typically delivered by a computer power supply for disk drive motors?

The voltage typically delivered by a computer power supply for disk drive motors is 12 volts. This voltage is essential because most disk drives, such as hard disk drives (HDDs) and optical drives, use 12 volts to power the motors that spin the platters or operate the loading mechanisms. The 12-volt output provides sufficient power for these components to operate efficiently under the varying load conditions encountered during read and write operations.

While other voltages like 3.3 volts and 5 volts can be used in different parts of the computer for circuit boards and lower power components, the requirement for higher torque and consistent performance in motors necessitates the use of the 12-volt supply.