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| Hello, 
 I have purchased orangepi rk3399 board and managed to flash armbian image. Everything seems to be working fine, most of device drivers are ok.
 I would like to use a sim card also and the board comes with a sim card slot.
 
 The board documentation states that sim card should be used as LTE module for mini PCIe extension which I don't understand since we have a SIM card slot why should we need the miniPCIe extension?
 
 1 x SIM slot, use as LTE module for miniPCIe extension         -> found it in orangepi rk3399 datasheet
 
 
 Can the SIM card slot be used directly on this board?
 
 Thanks,
 Mihaita
 
 
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