1. Product function: This product is a portable multifunctional converter, which is converted into (20VPD+card reader data+2*USB3.0 HUB+HDMI 4K through digital signal input with USB 3.1 Thunderbolt 3 (PD mode) interface Video) Multi-function application. 2. Product application: perfect match with dual interface Macbook. 3. Type-c lightning 3 interface, charging power up to 100W, theoretical transmission speed of 40Gbps. 4. Product material: high-end aluminum-magnesium alloy material, better heat dissipation performance. Additional Details ------------------------------ Package quantity: 1