Microphone/Headphone / DockUSB Type-C ThunderboltSecurity lock | Microphone/Headphone / DockSim Card SlotUSB Type-C | Headphone/microphone combo jackKensington security slotUSB Type-C ThunderboltSmartCard reader | Headphone/microphone combo jackKensington security slotUSB Type-C ThunderboltSD card reader |