Hard Disk Drive Circuit Board / Logic Board 0A90381 for 500GB-1.0TB 7200rpm 32MB SATA III 3.5" Hitachi (HGST) Deskstar 7K1000.D HDS7210x0DLE630

  

PCB Model

0J21896 BA4300A

0J21896 BA4300_
PCB P/N (PCB sticker)

0J21896 BA4300A

0J21896 BA4300_
Compatible HDD models

HDS721050DLE630 / 0F13178

HDS721010DLE630 / 0F13180
Main Controller IC

LSI 6045
HDD Motor Combo IC SMOOTH L7228

 

This item has been thoroughly tested, verified to be working, and guaranteed to be OK before shipment.
 
The buyer is fully responsible for verifying compatibility issues for this item. 
Please note that this item can only fix PCB problems. Some HDDs have additional internal damage that is not easy to detect.

The ROM IC on the PCB is programmed with the unique parameters/settings of its original HDD. 
You need to swap the ROM IC (marked by a red circle on the photo) then the donor PCB will be compatible with your hard drive.