Matching Pairs Data saversOnline version hard drive by Mr. Balcarcel 1 Internal Electronics 2 Printed Circuit Board 3 Actuator Assembly 4 Spindle Motor 5 Off Platter Parking 6 Platter The actuator "parks" on this landing ramp off the platters to avoid media contact during impact Preamp and other logic controls the actuator assembly. The mechanism that seeks across the platters and contains the read/write heads All of the necessary components for an HDD have power and data lines to allow your drive to store data This is where the data is magnetically stored Controls the rotation of the platters at up to 15,000 RPM.