Headphone/microphone combo jackKensington security slotUSB Type-C ThunderboltSD card reader | Dock/ Headphone/microphone combo jack | Headphone/microphone combo jackUSB Type-C (USB Power Delivery, DisplayPort) | قلم لمسیشارژر اورجینال تایپ سیHeadphone/microphone combo jackButtons for volume up and downKeyboard base with TouchPadUSB Type-C |