Interface type: Type-C 3.1 high-speed interface Expansion port: USB3.0*1+USB2.0*2+USB-C PD charging+HDMI 4K30Hz Transmission rate: TYPE-C to USB3.1 theoretical speed 10Gbps, backward compatible with USB3.0/USB2.0/USB1.1 Power output: Voltage: 5V-20V Current 3A-5A Power: 15W-100W Product features: USB 3.1 Type-C To USB3.0HUB + USB-C PD charging + HDMI 4K, data transmission and charging of computers and mobile devices, USB3.0 interface can be connected to USB, mouse, keyboard, mobile hard disk, game controller and other external connections equipment, the HDMI interface can be connected to a 4K high-definition TV or a projector, etc. Applicable models: After testing, it is perfectly compatible with the new Apple Macbook, Macbook Pro notebooks and Type-C interface series computers/tablets/mobile phones, 1. The product is extended with 1 high-speed USB3.0 interface. The USB3.0 interface supports data transmission such as USB large-capacity flash drive, card reader, mobile hard disk, etc., and connects USB external devices such as mouse, keyboard, game controller, bank U-shield, and printer. The USB3.0 interface supports the downlink USB BC charging protocol, and the output of the downlink USB BC charging power can reach up to 5V/1A, normally 500MA. 2. The product expands a USB-C interface to support PD charging protocol and data transmission. 3. The product expands the HDMI interface and supports HDMI 4K 30HZ audio and video output. The computer or mobile device should support HDMI 4K video output function, and the product connection device should be equipped with a standard 4K HDMI cable. 4. The product is built with high-quality chips, high-end technology, high-current power supply, low internal resistance, low loss, stable transmission speed, strong anti-interference ability, and stable and uninterrupted transmission signal speed 5. No driver is required, the Type-C interface can be plugged in front and back, supports hot swap, plug and play. 6. Support system: Windows 2000/2003/ME/XP/Vista/WIN 7/8/10 or Mac OS 8.1 or later.