Seagate ST31000340NS (9CA158-303 / SN05 / 100468979 H) SATA 3.5 PCB

This sale is for the hard drive circuit board (PCB / logic board) ONLY — no hard drive is included. Because we stock many similar PCBs, the board you receive may differ slightly from the photo. Intended use: data recovery and hard drive repair. Before buying, confirm that a PCB replacement will solve your problem by following our hard drive diagnostics guide, and verify compatibility with the Donor Matching Guide. Important: most Seagate PCBs contain unique data in the ROM memory chip that is required for correct drive operation. That ROM or its data must be transferred to the replacement board. If the ROM chip can be physically moved, a local computer technician can usually perform the transfer. For customers with orders of $60 or more, we provide a complimentary adaptation service that either moves the ROM chip to the new PCB or reprograms the replacement board with the correct ROM data. If you plan to do the swap yourself, review our PCB Replacement Guide first. If a simple PCB swap does not resolve your issue, we also offer a comprehensive PCB Replacement Service — see the Adaptation Service page for full details.