You want this write blocker (because it is not just a write blocker).
You can enter to win this here: https://www.dfir.training/guardonix-giveaway (the drawing is in a few hours, so hurry - July 17, 2020).
I wrote up my personal opinions of the DeepSpar Guardonix here: https://www.dfir.training/dfir-blog/if-you-don-t-already-have-a-deepspar-guardonix-you-might-want-to-get-one . If you don’t know what the Guardonix is, take a look at the post. Basically, this is the most economical data recovery device that recovers bad sectors and works as a write-blocker along with a few other really neat features. It is not just a write-blocker. It is way more.
So then comes an update…and then another update…
As I mentioned, the Guardonix is not just a write-blocker. It is a hardware device that can work through bad sectors better than any write-blocker on the market short of an all-out-data-recovery-device, especially since write-blockers are not designed to recover data