Design-wise, the Leef Access card-reading dongle comes with a longer connecting port in comparison with regular USB dongles. This way, you can still use the accessory with smartphones, which have either a case or a bumper put on them. In addition, the Leef Access dongle houses an additional slot, which allows you to store a second microSD card in it.
The Leef Access is a nice accessory for devices, which lack a native microSD slot on board, such as the HTC One (M7), the LG G2, and the Nexus 5. If you decide to give it a go, the Leef Access will set you back $9.99.
source: 2Leef via Engadget