HDD #1 Specs:
Family: Seagate 3.5″ Internal Hard Drive
PCB: 100721570 REV E
HDD Motor Combo IC: 78088(Both IC is compatible with each other)
Board Number: 100721570 Rev E (Please make sure your original PCB board number is same as our PCB)
Data recovery: Match MODEL NUMBER, PCB STICKER (optional – If your HDD firmware, date code and site code is different. You can swap the BIOS chip from original PCB to the replacement PCB, to make the replacement PCB compatible with your HDD.