Dock/ Headphone/microphone combo jack | Headphone/microphone combo jackUSB Type-CSecurity lock | قلم لمسیHeadphone/microphone combo jackButtons for volume up and downKeyboard base with TouchPadUSB Type-Cسیم کارت خور | Headphone/microphone combo jackKensington security slotUSB Type-C ThunderboltSmartCard reader |