Seagate ST3500418AS (9SL142-542, CC66, 5701 U) SATA 3.5 PCB

This listing is for a hard drive circuit board (PCB/logic board) ONLY — no hard drive included. Because we maintain a large inventory of PCBs, the exact board you receive may vary slightly from the pictured unit. The PCB is intended for hard drive repair and data recovery use. To confirm that a replacement PCB will resolve your issue, please run our hard drive diagnostics guide and verify compatibility with the Donor Matching Guide. Most hard drive circuit boards contain unique configuration data in a ROM "memory" chip; that ROM data is required for correct drive operation and must be transferred to the replacement board. If the ROM chip can be moved to the new PCB, a local computer professional can usually perform the transplant. For customers who spend $60 or more, we offer 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 perform the swap yourself, review our PCB Replacement Guide. In cases where a simple board replacement does not fix the problem, we provide a specialized PCB Replacement Service — see the Adaptation Service page for more information.