Seagate ST31000340NS - 9CA158-110 / MS04 (100468979 L) SATA 3.5 PCB

This listing is for the hard drive circuit board (PCB / logic board) only — no hard drive is included. Because we stock a large number of these PCBs, the exact board you receive may differ slightly from the photo. Intended for data recovery and hard drive repair, this PCB is compatible with the Seagate ST31000340NS (9CA158-110, MS04, 100468979 L) SATA 3.5 platform. Before ordering, please consult our hard drive diagnostics guide and the Donor Matching Guide to confirm compatibility and whether a PCB swap will resolve your issue. Most Seagate PCBs store unique settings in a ROM "memory" chip; that ROM data must be transferred or reprogrammed onto the replacement board for the drive to work correctly. If you cannot transplant the chip yourself, a local computer technician can usually perform the transfer. For orders of $60 or more we provide a complimentary adaptation service that will either move the ROM chip onto the new PCB or reprogram the replacement board with the correct ROM data. If a straightforward PCB swap doesn’t fix the drive, we also offer a specialized PCB Replacement Service — see the Adaptation Service page for full details and options.