In my opinion, this computer has major BIOS issues.  If I plug in more than one USB device (USB-C + Type A or two Type A), then my externally attached USB mouse stops working and the second device may or may not work depending on the type of device plugged in.  It does not matter if I am using a high end Logitech mouse or a cheap wired MS USB mouse, the USB port is just functionally not working.  Yes, this could be driver issues but, Intel and NVIDIA drivers are up to date and say they are functioning.  So, this leads me to believe it is a BIOS issue.By the way, the BIOS is useless because it has practically no options loaded into it.  I don't know how a company in the year 2019 gets away with creating a BIOS that has literally no options available for edit like this but, Acer has pulled this off.  This also leads to my suspicions about my USB problem being a BIOS issue.  If I could mess around or even determine the method the USB is configured by the BIOS, I may be able to resolve my own problem!Also, be advised the USB-C port may be a USB v3.1 Gen 2 port but, it is NOT a Thunderbolt 3 port so do not expect TB3 devices to work with this laptop.  I can't confirm it is an actual Gen 2 port because, like I said above, I cannot connect two USB devices to this laptop....I don't know why it has 4 USB ports because they can't be used.Let me say that I am not a gamer but, the specs on this computer closely match the high-end workstation I built myself for development work so, I thought I would give this a go to work while I am out of the house.  I am seriously considering returning the machine and getting a different machine from an Acer!