Product Description1. [Immediate expansion]: 5-in-1 type-c hub equipped with 2 * USB3.0, HDMI 4K port, micro SD / TF card reader slot, SD card reader. Easy expansion of USB-C devices and fulfillment of your daily use.2. [HDMI 4K Video Adapter]: Allows you to mirror or expand the display of your laptop on TV, monitor or projector with the resolution up to 4K UHD, also supports 1080p / 23.98 / 24/50 / 59.94 / 60HZ, 1080i / 50 / 59.94 / 60HZ, 720p / 50 / 59.94 / 60HZ.3. [USB 3.0 ports at 5Gbps]: make it possible to connect keyboard, mouse, USB stick to your laptop; offer a fast transfer rate of up to 5Gbps.4. [High quality]: Devices have stable performance, temperature protection, anti-overcurrent and short circuit protection. Easy access to files through SD and microSD card reader, easy plug amp; play to expand the functionality of your MacBook or other USB devices.5. [Compact and Portable] The compact and lightweight design fits easily into your bag or pocket for effortless portability.