Products include a USB interface, SD/TF interface, power supply interface, and HDMI/VGA interface. Different USB-C ports can use different functions for connecting HUB. 1. Ordinary USB-C ports can use USB and SD/TC interface functions. 2. Support PD (Power Delivery) can use the power supply interface function. 3. Support DP (Display Port) can use HDMI/VGA interface function. 4. Full-function port and Thunderbolt interface support all functions. Before purchasing, please understand the type of USB-C port of your laptop, so as not to be unable to use the expected functions after purchase, you can consult the brand customer service or browse the official website of the laptop to understand the product interface type. Output Resolution: Single HDMI output: you can enjoy 4k@30hz videos, games etc. , crystal clear with zero lag. VGA Output Resolution: 1080P@60Hz. When HDMI and VGA port work simutaneously: HDMI 1 + HDMI 2: 4K@30Hz, HDMI 1 + VGA: 1080P@60Hz, HDMI 2 + VGA: 1080P@60Hz, HDMI 1+HDMI 2 +VGA: 1080P@60Hz