A decent SD card reader, but a little slow for modern card readers.

Great portable SD/microSD card reader, but might not work for your Android device! Nice little USB card reader that is the size of a USB flash key itself! Great to use with a tablet or laptop, to review pictures from a camera for example. Supports the SDXC standard (tried a 64GB Sandisk card in it), will move data as fast as a USB 2.0 port allows. Works out of the box on various laptops or workstations I tried. However on my Samsung Galaxy Tab Note 10.1 2014, the SD or microSD card in the reader ended up "replacing" the microSD card in the tablet (making the content in the onboard card unaccessible until I removed this reader and rebooted the tablet). No data was lost and no damage to the filesystem, but it's an annoyance, as I bought this tiny reader to use with the tablet. Other larger USB card readers I own (both USB 2.0 or 3.0) do not exhibit this problem with my tablet. I haven't tried this IOGEAR reader on my phone for fear it causes trouble again with the onboard microSD card. Just be warned if you want to use with an Android device as an OTG reader.