WD2500AAKX-321CA0 / 2061-771640-S13 AC — WD SATA 3.5 PCB (Logic Board Only)

This listing is for the hard drive PCB (printed circuit board / logic board) only — the hard drive is NOT included. We maintain a large stock of PCBs, so the exact board you receive may differ slightly from the photo. Intended use: data recovery and hard drive repair for compatible WD drives (including WD2500AAKX-321CA0 / 2061-771640-S13 AC). Before ordering, please run our hard drive diagnostics guide to confirm a replacement PCB will resolve your issue, and review the Donor Matching Guide to ensure part compatibility. Important: most hard drive PCBs store unique calibration and configuration data in a ROM memory chip. That ROM (or its data) must be transferred to the replacement board for the drive to function properly. If the original ROM chip can be physically moved to the new board, a qualified local technician can usually perform the transfer. For customers spending $60 or more, we provide a complimentary adaptation service that includes either transplanting the ROM chip to the new PCB or reprogramming the replacement board with the correct ROM data. If you plan to perform the swap yourself, consult our PCB Replacement Guide for step-by-step instructions. When a simple board swap does not fix the drive, we also offer a dedicated PCB Replacement Service — see the Adaptation Service page for full details.