WD SATA 3.5 PCB - WD40EZRX-00SPEB0 / 771945-E01 04P

This listing is for the hard drive circuit board (PCB / logic board) ONLY — no hard drive is included. Because we maintain a large inventory, the exact PCB you receive may differ slightly from the photo. Intended use: data recovery and hard drive repair. Before ordering, confirm a replacement PCB will resolve your problem by following our hard drive diagnostics guide, and verify compatibility using the Donor Matching Guide. Most hard drive PCBs store unique information in a ROM "memory" chip; that ROM data is required for correct drive operation and must be transferred or reprogrammed onto the replacement board. If the ROM chip can be physically moved, a local computer technician can usually perform that task. For customers with purchases of $60 or more, we provide a complimentary adaptation service that includes either moving the ROM chip onto the new PCB or reprogramming the replacement board with the correct ROM data. If you plan to do the swap yourself, review our PCB Replacement Guide first. In instances where a simple PCB swap does not restore functionality, we offer a dedicated PCB Replacement Service — see the Adaptation Service page for full details.