Drives have been tested and works as expected without bad sectors or errors detected. Model is Samsung MZ-76E4T0 , less than 50 Power On counts, less than 15500 Power On hours and 99% Health Status as shown in pictures. 

• Fully functional, in excellent working order and excellent health status, no bad (reallocated) sector, no slow-writing or other issues, nice and clean cosmetic condition.
• Drive Model exactly as pictured, Serial Number as shown in CrystalDiskInfo capture.