Seagate ST3500418AS 9SL142-302 CC38 1474 H SATA 3.5 PCB (Logic Board)

This listing is for the hard drive circuit board (PCB / logic board) only — no HDD is included. Because we maintain a large inventory, the actual PCB you receive may differ slightly from the photo. This PCB is intended for hard drive repair or data recovery work on Seagate drives matching ST3500418AS, 9SL142-302, CC38, 1474 H specifications. Before assuming a replacement will fix your drive, please consult our hard drive diagnostics guide and verify compatibility using the Donor Matching Guide. Many Seagate PCBs contain unique configuration data stored in a ROM “memory” chip; that data is required for the drive to function properly. The ROM chip itself, or its contents, must be transferred to the replacement board. If physical chip transfer is feasible, a local computer technician should be able to perform the procedure; alternatively, the ROM data can be reprogrammed onto the new PCB. For customers who spend $60 or more, we provide a complimentary adaptation service that includes either moving the ROM chip to the new board or reprogramming the replacement PCB with the correct ROM data. If you plan to do the swap yourself, review our PCB Replacement Guide first. In cases where a simple board swap does not resolve the issue, we also offer a special PCB Replacement Service — see the Adaptation Service page for full details.