Magnetic heads and condition of disk decide the quality of hard disk drive, since we replace heads and disk, the quality of repaired product will be that of new product. (The quality of repaired product is less than new one but you can use it as a new one.)

Replacing new parts and burn in test of factory level would also decide the quality of repaired hard disk drive.

Myung Information Technology provide warranty period of 6month to 1year, its because we have faith and assurance in quality.