WD2500AVVS-61L2B0, 2061-771590-Z01 AB, REV A, WD SATA 3.5 PCB Specifications;Model: WD2500AVVS-61L2B0;PCB Sticker: 2061-771590-Z01 AB;PCB Revision: 2060-771590-001 REV A; ;