WD6400AAKS-40H2B0, 2061-771577-900 04P, 001 REV A, WD SATA 3.5 PCB Specifications;Model: WD6400AAKS-40H2B0;PCB Sticker: 2061-771577-900 04P;PCB Revision: 2060-771577-001 REV A; ;