How Long Can SSD Store Data Unpowered Year 1 Update

, SSD, Archive, Testing Long term SSD data storage test. How long can an SSD store data while unpowered I m doing my own basic test to store and check data after 1 year and 2 years left unpowered. Link to WD White Paper on SSD and Hard Drive data retention: Due to suggestions, I did end up doing a read test of the data. I unfortunately did not do a read test when disks were new, but I do have the 1 year test results here: 102458 Total MB 683 Total Files 150 MB Avg File Size 1 Year Check: SSD 1 (Worn): 207 seconds total 495 MB, sec avg read speed SSD 2 (Fresh): 225 seconds total 456 MB, sec avg read speed While I don t have the original read speed results, I d say there is really no degradation in performance so far with those rates.