Dock/ Headphone/microphone combo jack | Keyboard base with TouchPadUSB Type-Cسیم کارت خورقلم لمسیHeadphone/microphone combo jackButtons for volume up and down | USB Type-C ThunderboltSD card readerHeadphone/microphone combo jackKensington security slot | USB Type-C ThunderboltSD card readerHeadphone/microphone combo jackKensington security slot |