USB Type-C ThunderboltSecurity lockMicrophone/Headphone / Dock | Kensington security slotUSB Type-C ThunderboltSD card readerHeadphone/microphone combo jack | Kensington security slotUSB Type-C ThunderboltSmartCard readerHeadphone/microphone combo jack | Sim Card SlotUSB Type-CMicrophone/Headphone / Dock |