Serial Port / Headphone/microphone combo jack | Card Reader: SD, 1 SmartCard | Headphone/microphone combo jackKensington security slotUSB Type-C ThunderboltSD card reader | شارژر اورجینال تایپ سیHeadphone/microphone combo jackButtons for volume up and downKeyboard base with TouchPadUSB Type-Cقلم لمسی | Headphone/microphone combo jackUSB Type-C |