Dock/ Headphone/microphone combo jack | Headphone/microphone combo jackKensington security slotUSB Type-C ThunderboltSmartCard reader | Dock/ Headphone/microphone combo jackSim Card Slot | سیم کارت خورقلم لمسیHeadphone/microphone combo jackButtons for volume up and downKeyboard base with TouchPadUSB Type-C |