Sdcardholder Multi Sim Cardholder Holds up to 3 cell phone SIM cards, 4 micro SD cards, and one standard Micro SD to SD card adapter Positive locking feature, independent tab for each SIM Card, microSD card, AND SD Card Adapter SIM cards and SD Cards are inserted with the electrical contacts fully protected Size and shape of a credit card making it easy to carry around See also SDcardholders for standard SD, Micro SD cards, and DS Gamepac for Ninento games