Features
Built with the aluminum alloy case, it is specially designed for 13.3-inch or 15.4-inch MacBook Air 2018 and MacBook Pro (2016 / 2017 / 2018)
 
SuperSpeed USB 3.0 Ports
Enable you to connect up to 2 USB peripherals to your MacBook Air 2018 or MacBook Pro (2016 / 2017 / 2018) simultaneously and transfer data at up to 5Gbp/s. Backwards compatible with USB 2.0 devices. 
 
Thunderbolt 3 USB 3.1 Type-C port
Support Thunderbolt 3 throughout (up to 10Gbps), 4K (3840 x 2160 @ 60Hz) display connectivity, and charging for your MacBook Air 2018 or MacBook Pro (2016 / 2017 / 2018) while connecting to a USB-C power adapter. 
 
4K Video HD Output Adapter
Mirror or extend the display of your MacBook Air 2018 or MacBook Pro (2016 / 2017 / 2018) to your TV, monitor or projector in up to 4K UHD (3840 x 2160 @ 30Hz) resolution through the HD output port. Backward support 2K / 1080p / 720p / 480p / 360p resolutions. 
 
SD / TF Card Reader
Enable you to easily access files from an SD card and / or a TF card directly. Support SD memory cards and TF memory cards of up to 512G. 
 
Potable & Easy to Use
Slim, thin and compact. No driver required. Plug and play. Support hot swapping function.
 
Compatible USB-C devices:
For 13-inch and 15-inch MacBook Air 2018 and MacBook Pro (2016 / 2017 / 2018)
For 13-inch and 15-inch MacBook Pro with Touch Bar and Touch ID (2016 / 2017)
System requirement: macOS Sierra or above operating systems
Supported capacity of memory cards: Up to 512GB