1. The maximum data transmission speed reaches 10Gbit/s, which is also the standard of USB 3.1;2. The size of the Type-C interface socket end is about 8.3mmx2.5mm slim design;3. Supports the "positive and negative insertion" function that can be inserted from both sides, and can withstand 10,000 repeated insertions and withdrawals;4. The standard cable with Type-C connector can pass 3A current, and also supports "USB PD" that exceeds the existing USB power supply capability, which can provide a maximum of 100W of power.No pros and cons: Like Apple's for Apple interface connector, the USB-C port is identical on the front and back. This means that no matter how you plug it into the port, it will be correct. Users don't have to worry about the pros and cons of traditional USB ports.The main functionFast: Theoretically, the maximum transfer rate of a USB-C port is 10Gb per second. But Apple says the new MacBook's USB-C port has a maximum transfer rate of 5Gbps. The maximum output voltage is 20 volts, which can speed up the charging time. And USB-A, so far the limit transfer rate is 5Gbps, the output voltage is 5V.Generalist: The new MacBook's USB-C port is capable of transferring data, charging and also serving as a video-out port to link an external display device. The only question is how Apple caters to users who want to do all three at the same time.Two-way: Unlike older USB ports, where power can only be transferred in one direction, the USB-C port's power transfer is bidirectional, which means it can have two ways of sending power. Therefore, the user can not only charge the mobile device with the notebook, but also charge the notebook with other devices or a power bank.Colour:blackMaterial:ABSPackage Contents:1 * hubOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.