Sadly I can't recommend this model. I plugged my (working) SD card into the adapter and it into my Mac but nothing appeared in the Finder. On removing the adapter I noticed the SD card was almost too hot to touch. Plugging the SD card into another adapter showed it no longer worked.
'King Of Flash' apologised and prompty replaced both the SD adapter (with a different model) and my SD card.
The product does what it says it will do. It's a small compact design and is the perfect USB size. The only fault I'd give this product is that it's a little flimsy. The shell has broken apart several times, but it easily clips back together.