Bests & Worsts Reviews from Amazon

Of the (literal) HUNDRED+++ "SanDisk" storage drives I have purchased for over a decade, this is the first that's failed me. Not only did it fail me, but it failed on my FIRST attempt of use! :( I transferred 78GB file (Photo library - 1 file - Mac). Albeit, it took almost 7 hours to transfer, it did end up fully transferring). I then went on to transfer enough (additional) files to fill up 94-95% of it's registered capacity per my computer's displayed capacity of 124.22GB. I do this with all new storage drives I purchase - I fill them up almost to 100%, then transfer the files to another external storage system I have and check the integrity of the files sent from the new device to my ultimate backup device. If they made the transfer successfully on and off the new drive, I then precede to use it for whatever my heart desires. Like other reviewers on here, it got extremely hot and ended up slowing down quite a bit (seemingly after seconds of initiating the copy/paste transfer). Unfortunately, the drive ended up becoming corrupt and now I can't remove the files from my trashcan. I've tried "Verifying" and "Repairing" the disk via "Disk Utility" on my MacBook air, as well as a secondary Apple Desktop. I've also attempted to remove it through the "Terminal" via Apple's latest OS system. Additionally, I've taken it to the local Apple store in-person to see if there was something else I wasn't trying... It's completely unusable now and what's also unfortunate is I just recently found the time to start working with it since purchased (Nov. 28th of last year) = past the 30 day return policy. Not only am I out the money I spent on this item, but I'm also out a number of hours (6+) of my time from attempting to resolve the issue. Huge disappointment. Seems as though SanDisk had a huge design flaw with this specific model (makes sense, considering the advertised capacity versus the physical dimensions). Do yourself a favor and look elsewhere for your external digital storage needs.