About DiskGrade

DiskGrade grades hard drives and SSDs on how often they actually fail. Price comparison sites rank drives by cost per terabyte, which favours cheap drives whether or not they last. We start from the other end: real failure records, turned into a simple A to F grade.

It is for anyone choosing drives for a NAS, a home server or a backup. See how the grades work for the data source, the calculation and its limits.

How the site is funded

DiskGrade does not carry affiliate links or advertising at present. We plan to add retailer price comparisons. When we do, some links will earn us a commission at no extra cost to you, and this page will say so. Reliability grades are computed from failure data alone.

Contact

contact@diskgrade.com