I have this hub plugged to the MacBook Pro I am typing this review on. All ports are used: a monitor takes up the HDMI connection, the USB-C port goes to the laptop charger, and all three USB-A ports are used for other gadgets. Everything works without issues. Happy with the purchase as it has freed up ports on the laptop itself. It has also helped organize where my devices are plugged in, with only one plug to remove when I need to take the laptop elsewhere.