This multi-port USB C adapter extends USB C into 6 ports (1xUSB 3. 0 port, 1xUSB 2.0 port, 1xHDMI port, 1 PD fast charging port, 2 memory card reader slots) USB 2.0 port with wider compatibility for diversified devices including USB disks and wireless keyboard and mouse USB 3.0 port provides super fast data transmission speed of up to 5Gbps, easily upload or download files, music, photos in several seconds The PD port can charge most laptops and computers (USB-C compatible) while simultaneously charging your phone. Thus you don't need to worry it’s out of power while playing or using HDMI port for 4K media display, easily connect the USB-C enabled device to any HDMI television or monitor and experience exceptional picture sharpness and sound reproduction with 4K resolution The blue LED light will flash when in normal working status Specification: Model number: MDK-4P Product material: ABS USB 3.0 transfer rate: 5Gbps Input interface: Type-C Main control scheme: AG9310, SL2.1 Indicator light: blue LED light Line length: 11cm Support System: for Mac OS or Windows or Linux or Android or iPad