Microphone/Headphone / Modem / FireWire / Dock | SmartCard readerHeadphone/microphone combo jackKensington security slotUSB Type-C Thunderbolt | SD card readerHeadphone/microphone combo jackKensington security slotUSB Type-C Thunderbolt | SD card readerHeadphone/microphone combo jackKensington security slotUSB Type-C Thunderbolt |