Seagate ST3250820NS SATA 3.5 PCB — 9BL13E-145 / 3AZQ / 100419006 D

This listing is for the hard drive printed circuit board (PCB / logic board) ONLY — no drive is included. Part numbers and identifiers: ST3250820NS, 9BL13E-145, 3AZQ, 100419006 D (Seagate SATA 3.5). Because we stock large quantities, the exact board you receive may differ slightly from the photo. Intended use: replacement PCBs are provided for hard drive repair and data recovery. Before purchasing, confirm that a PCB swap is the correct fix by following our hard drive diagnostics guide. Also verify compatibility using the Donor Matching Guide to ensure this board is appropriate for your drive. Important ROM note: many hard drive PCBs store unique parameters in a ROM ("memory") chip. That ROM content is required for the drive to function properly. The ROM chip itself or its data must be transferred to the replacement board. If the chip can be physically moved, a local computer technician can usually perform the transplant. For those who prefer professional help, we include a complimentary adaptation service with purchases of $60 or more; this service covers either moving the ROM chip to the new PCB or reprogramming the new board with the correct ROM data. If you plan to perform the swap yourself, review our PCB Replacement Guide first. When a straight board swap does not resolve the issue, we provide a dedicated PCB Replacement Service that handles more complex adaptation and recovery tasks — see the Adaptation Service page for full details.