MK5055GSXN, A0/GC001U, HDD2H28 Z ZL01 T, G002657A, Toshiba SATA 2.5 PCB PCB Specification:;Model: MK5055GSXN;HDD Code: HDD2H28 Z ZL01 T;Firmware: A0/GC001U;PCB Revision: G002657A;;