Dock/ Headphone/microphone combo jackSim Card Slot | SmartCard readerSD card readerHeadphone/microphone combo jackKensington security slotSim Card SlotUSB Type-C Thunderbolt | Headphone/microphone combo jackUSB Type-C (USB Power Delivery, DisplayPort) | Microphone/Headphone / DockSim Card SlotUSB Type-C |