Pi Zero2w as USB gadget with HDMI-USB module

I have been using my rpi z2w as a usb mass storage device for some time. I ordered the ARGON POS Case with HDMI-USB Module for both the build and ability to expand the ports available on the pi. Unfortunately I have not been able to figure out how to continue to use the pi as a usb mass storage device. Anybody have insights on if this is possible with the module installed?