Seagate ST31000340NS SATA 3.5 PCB / Logic Board - 9CA158-304 SN06 100534274 A

This listing includes the hard drive circuit board (PCB / logic board) ONLY — no hard drive is provided. Because we stock large quantities, the actual PCB you receive may vary slightly from the photo. Intended for hard drive repair and data recovery use. Prior to purchasing, confirm a replacement PCB will resolve your issue by using our hard drive diagnostics guide and verify compatibility with the Donor Matching Guide. Most PCBs contain unique ROM "memory" data required for correct drive operation; that ROM or its contents must be transferred to the replacement board. If the ROM chip can be moved, a local computer technician can usually perform the transfer. For customers with purchases of $60 or more, we include a complimentary adaptation service which covers either transplanting the ROM chip onto the new PCB or reprogramming the replacement board with the correct ROM data. If you plan to do the work yourself, consult our PCB Replacement Guide. Should a simple board swap not resolve the problem, we also provide a dedicated PCB Replacement Service — see the Adaptation Service page for full details.