Seagate ST3500418AS 9SL142-021 HP34 5701 P SATA 3.5 PCB (Logic Board Only)

This listing is for the hard drive circuit board (PCB / logic board) only — no hard drive is included. We stock a large quantity of these PCBs, so the exact board you receive may differ slightly from the photo. The part is intended for hard drive repair and data recovery work. Before purchasing, confirm this replacement will resolve your issue by following our hard drive diagnostics guide and verifying compatibility using the Donor Matching Guide. Most hard drive PCBs contain unique configuration data stored in a ROM "memory" chip; that information is required for the drive to operate correctly. The ROM chip or its data must be transferred to the replacement board. If the chip can be physically moved to the new PCB, a local computer technician can usually perform the transfer. We offer complimentary adaptation service for orders of $60 or more, which includes either transplanting the ROM chip onto the replacement PCB or reprogramming the new board with the correct ROM data. If you plan to do the swap yourself, consult our PCB Replacement Guide for detailed instructions. Should a straightforward PCB swap not fix the problem, we also provide a special PCB Replacement Service — see the Adaptation Service page for full details.