Sim Card SlotUSB Type-C ThunderboltSmartCard readerSD card readerHeadphone/microphone combo jackKensington security slot | USB Type-C ThunderboltDock/ Headphone/microphone combo jackSim Card Slot | USB Type-CMicrophone/Headphone / DockSim Card Slot | Headphone/microphone combo jackUSB Type-C (USB Power Delivery, DisplayPort) |