MK5055GSX, A0/FG001U, HDD2H21 Z ZL01 T, G002439-0A, Toshiba SATA 2.5 PCB PCB Specification:;Model: MK5055GSX;HDD Code: HDD2H21 Z ZL01 T;Firmware: A0/FG001U;PCB Revision: G002439-0A; ;