Seagate ST3750640NS SATA 3.5 PCB (9BL148-371 / 3.AEH / 100406531 C)

This listing is for the hard drive circuit board (PCB / logic board) ONLY — no hard drive is included. Because we stock a large quantity of PCBs, the exact board you receive may differ slightly from the photo. Designed for use in data recovery and hard drive repairs. Before purchasing, confirm a replacement PCB will resolve your issue by following our hard drive diagnostics guide and verify compatibility using the Donor Matching Guide. Most PCBs contain unique information stored in a ROM "memory" chip that is required for the drive to function correctly; the ROM chip or its data must be transferred to the replacement board. If the ROM chip can be physically moved, a local computer technician can typically perform the swap. For orders of $60 or more we include a complimentary adaptation service that either transfers the ROM chip to the new PCB or reprograms the replacement board with the correct ROM data. If you plan to install the board yourself, review our PCB Replacement Guide. If a simple PCB swap does not fix the drive, we also provide a full PCB Replacement Service — see the Adaptation Service page for details.