8in1 usb-c hubhdmi(60hz)+usb*2+pd charging+ usb c /f + sd &tf card reader+rj45 features: 1, hdmi:4k *2k(3840*2160)30hz, downwards compatible with 1080p 720p etc. 2.usb c female port:20v ,support max 87w power adapter, 3,usb c male:copatible with thunderboil 3,make sure that the host usb-c port on your device complies with the usb3.0/3.1 specification 4,sd / tf card reader:sd and tf cards can work simultaneously, read and write speed depands on cards' quality 5,rj45: max ethernet speed: 100mbps comply with usb-c interface specification built in conversion chip,plug and play specifications: material: aluminum alloy color: grey package included: 1 x 8in1 usb-c hub