Seagate ST3750640NS 3.5" SATA PCB / Logic Board — 9BL148-302 3.AEG 100409233 E

This listing is for the hard drive circuit board (PCB / logic board) ONLY — no hard drive is included. Multiple PCBs are in stock, so the exact board you receive may differ slightly from the photo. Intended use: hard drive repair or data recovery for the Seagate ST3750640NS series. Before purchasing, confirm that a replacement PCB will resolve your issue by following our hard drive diagnostics guide and verifying compatibility with the Donor Matching Guide. Important: most Seagate PCBs store unique configuration data in a ROM memory chip; that ROM data is required for the drive to operate correctly. You must transfer the ROM chip or its contents to the replacement board (or have the new board reprogrammed). If you cannot perform the transfer yourself, a local computer technician can usually move the chip. For customers spending $60 or more, we include a complimentary adaptation service that either relocates the ROM chip to the new PCB or reprograms the replacement board with the correct ROM data. If you plan to do the work independently, see our PCB Replacement Guide for step-by-step instructions. Should a direct board swap not fix the problem, we also provide a full PCB Replacement Service — visit the Adaptation Service page for more information.