Seagate ST3250620AS SATA 3.5 PCB - 9BJ14E-621, 3.AHG, 100436204 A

This listing is for the hard drive circuit board (PCB / logic board) only — the hard drive itself is not included. Because we stock a large number of PCBs, the board you receive may differ slightly from the photo. These PCBs are intended for hard drive repair and data recovery work. To confirm a replacement board will solve your problem, please follow our hard drive diagnostics guide and verify compatibility using the Donor Matching Guide. Many Seagate PCBs contain unique configuration data stored in a ROM (memory) chip that is required for the drive to function correctly; the ROM chip or its contents must be moved or copied onto the replacement board. If transfer of the ROM chip is possible, a qualified computer technician can perform the swap. For purchases 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 do the work yourself, review our PCB Replacement Guide first. If a simple board swap does not resolve the issue, we also provide a comprehensive PCB Replacement Service — see the Adaptation Service page for details.