Serial Port / Headphone/microphone combo jack | Card Reader: SD, 1 SmartCard | Keyboard base with TouchPadUSB Type-Cقلم لمسیشارژر اورجینال تایپ سیHeadphone/microphone combo jackButtons for volume up and down | | USB Type-C ThunderboltSD card readerHeadphone/microphone combo jackKensington security slot |