WD6400KMVV-11A27S2, 2061-701675-401 AB — WD USB 2.5 PCB

This listing is for a hard drive circuit board (PCB, Logic board) ONLY — the hard drive itself is not included. Because we stock a large number of these PCBs, the exact board you receive may differ slightly from the photo. These replacement circuit boards are intended for hard drive repair and data recovery work. Before purchasing, confirm that a PCB swap will resolve your issue by consulting our hard drive diagnostics guide, and verify compatibility using the Donor Matching Guide. Many hard drive PCBs store unique calibration and configuration data in a ROM "memory" chip; this data is required for the drive to function correctly. The ROM chip or its contents must be moved or copied to the replacement board. If relocation is possible, a local computer technician can typically perform the transfer. For customers spending $60 or more, we provide a complimentary adaptation service that includes either transplanting the ROM chip onto the new PCB or reprogramming the replacement board with the correct ROM data. If you plan to perform the swap yourself, review our PCB Replacement Guide first. Should a basic PCB change not resolve the problem, we also offer a specialized PCB Replacement Service — see the Adaptation Service page for more information.