Dock/ Headphone/microphone combo jack | Headphone/microphone combo jackKensington security slotUSB Type-C ThunderboltSD card reader | SD card readerHeadphone/microphone combo jackKensington security slotSim Card SlotUSB Type-C ThunderboltSmartCard reader | Dock/ Headphone/microphone combo jackSim Card SlotUSB Type-C Thunderbolt |