Online-Enterprises Multi SIM Card Adapter for Samsung Galaxy S 5/i9600, S Iv/i9500, S Iii/i9300, Note III / N9000, Note Ii/n7100, Mega 6.3 / I9200, Grand 2/g7106 Switch between SIM Cards using the SIM Toolkit Application. (Located under "Applications" once you have installed the adapter) You will not be able to use multi sims at the same time because your cell phone only has one antenna. Its like a laptop with one wifi connection. You cant connect to two different wifi sources at the same time with only one antenna. You will have to switch back and forth. This Adapter supports Samsung Galaxy S5 / i9600 / S IV (i9500) / S III / Samsung Mobile Supports Universal GSM / WCDMA / HSDPA / LTE Network (Not tested with CDMA Network although it should work). Q-Sim is the app that works the best. If the phone model you have is not stated here it might work, in fact it probably will work, as long as the operating system is Android. But there are no guarantees. This is new technology and every phones operating system is unique. The two lower sims are full size sim card slots. You will need an adapter if you have a MICRO sd card. Those can be purchased separately.