Unibody design. Aluminium alloy case. 3 X USB. 2 X HDMI. 1 X Type-C. 1 X SD. 1 X Micro SD.
Premium Quality: Built with the aluminum alloy case, it is specially designed for MacBook Pro(2016,2017) and Macbook Air(20018)
SuperSpeed USB 3.0 Ports: Enable you to connect up to three USB peripherals to your MacBook Pro (2016 / 2017) simultaneously and transfer data at up to 5Gbp/s. Backwards compatible with USB 2.0 devices.
Thunderbolt 2 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 Pro 2016 / 2017 while connecting to a USB-C power adapter.
4K Video HD Output Adapter: Mirror or extend the display of your MacBook Pro 2016 / 2017 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.