Seagate ST31000340AS SATA 3.5 PCB - 9BX158-568 / SD81 / 100468979 J

This listing is for the hard drive circuit board (PCB / logic board) ONLY. No hard drive is included. Due to our large inventory of PCBs, the exact board you receive may vary slightly from the photo. The board is sold for hard drive repair and data recovery purposes. Before purchasing, confirm that a PCB replacement will resolve your issue by using our hard drive diagnostics guide and check compatibility via the Donor Matching Guide. Most PCBs contain unique data stored in the ROM "memory" chip that is required for proper drive operation. That ROM chip—or its data—must be transferred to the replacement board or the new board must be reprogrammed with the correct ROM data. If you cannot perform the transfer yourself, a local computer technician should be able to move the chip onto the new circuit board. For purchases of $60 or more we provide a complimentary adaptation service, which includes either transplanting the ROM chip onto the replacement PCB or reprogramming the board with the correct ROM data. If you prefer to do the swap yourself, consult our PCB Replacement Guide for step‑by‑step instructions. In cases where a simple board swap does not fix the problem, we offer a full PCB Replacement Service—please visit the Adaptation Service page for additional details.