TOSHIBA 4 TB 3,5" SATA HDD 7200 RPM MG04ACA400N, GRADO C, SKU 20785
Model: TOSHIBA MG04ACA400N 4TB. Key Functions Working (Appendix C - Test and Repair). Grade Scale B= up to 40 Bad/ Reallocated Sectors and/or 60-69% health. C= over 40 Bad/Reallocated Sectors and/or 50-59% health.