Magnet used by the actuator mechanism.

Structure where heads rest when parked.

Circuit board controlling a hard drive.

Memory temporarily storing hard-drive data.

Bearing supporting the spindle motor.

Filter equalizing internal pressure while blocking particles.

Internal filter helping maintain clean drive air.

Sensor detecting physical shock to a drive.

Sensor monitoring drive temperature.

Nonvolatile memory containing drive firmware.

SATA interface connector on a hard drive.

SAS interface connector on an enterprise drive.

Small addressable storage unit on a disk.

Circular data path on a platter.

Corresponding tracks across multiple platter surfaces.

Logical storage allocation unit.

External station for connecting drives.

Hardware accelerating cryptographic hashing.

Dedicated hardware protecting cryptographic keys.

Circuit generating hardware-based random numbers.

Current sensor using magnetic-field detection.

Controls safe connection of powered hardware.

PCB material designed for higher temperatures.

High-density interconnect printed circuit board.

Sensor detecting magnetic fields or magnetic position.

Another term for a Hall-effect sensor.

Magnetic storage device using rotating platters.

Hardware controlling communication with a hard disk.

Magnetic disk surface used to store data.

Tiny component reading or writing magnetic data.

RAID functionality implemented using dedicated hardware.

Circuit generating precise timing intervals.

Sealed tube transferring heat using phase-changing fluid.

Component distributing heat over a larger surface area.

Passive or active component that dissipates heat.

Thermal material improving heat transfer between surfaces.

Thin surface extending from a heat sink to increase area.