Monster Digital 20861 On-The-Go USB Flash Drive Value Pack (16GB OTG USB 3.0 and 16GB USB 3.0) 1 piece 16GB OTG (On-The-Go) USB 3.0 flash drive for new Android tables and Smartphones 1 piece 16GB USB 3.0 flash drive for computers (Windows and Mac), smart TVs and audio systems 5x Faster than USB 2.0 drives. USB 2.0 compatible Both of these drives can transfer files at up to 80MB/s Durable metal case