This item is for one Western Digital WD2500BEVS-26UST0 HHYTJHBB (WXE5) Thailand 250gb 2.5" HDD 12JUN2008. This drive and all of our drives are professionally tested and cleaned on a DOD certified machine at Oem level. We do not use software for this process! Once they have passed our Quality control they are 100% in perfect working condition!