Dock/ Headphone/microphone combo jack | Kensington security slotSim Card SlotUSB Type-C ThunderboltSmartCard readerSD card readerHeadphone/microphone combo jack | Kensington security slotUSB Type-C ThunderboltSD card readerHeadphone/microphone combo jack | Kensington security slotUSB Type-C ThunderboltSmartCard readerHeadphone/microphone combo jack |