Amazon calculates a product’s star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers, and factors that establish reviewer trustworthiness.
Was hopeful, but the card had several issues. Would freeze constantly during data transfer despite repeated reformatting and caused my device to crash. I ordered a different (new) replacement card, and that one worked great, but I would be leery of this one.