I think I got 8 or 9 months out of this before it started to fail. It is still working intermittently but my phone will suddenly stop being able to read it for no apparent reason. &#34;Designed for durability&#34; my foot. It might survive in salt water but it didn't survive in a phone that, frankly, doesn't get a whole lot of use. This is the first Sandisk product I've ever had fail on me. It may still be under warranty but I don't care. Now that I have to replace it I'm going to go with another brand.