Up for sale is qty:1 

Seagate ST3500312CS Sata PCB Circuit Hard Drive Controller Board 100535704 Rev B

Part was carefully pulled,  part is lightly used and 100% Working.

• Auction is for PCB Board only as shown in picture, not the Entire Drive. 
• 
  
• Most hard drive boards have the unique BIOS (ROM or
•  NVRAM chip) which includes the unique data to access
•  the HDD system area. If the BIOS information is not
•  compatible with your HDD, there is no way to read the HDD's data. Because of this, you should swap the original
• 
  
•  PCB's BIOS to the donor PCB.

"All parts are tested to make sure they are in working condition unless stated otherwise , all serial numbers are recorded ,

 in case of a return our team will check the serial number and condition to make sure they are the same as the time of shipping "

" We ship internationally to almost all countries."