Question Need help with Projectors EPSON EB-X05 and BenQ MH-550

Mar 30, 2019
The EPSON one has USB type A port. The BENQ one has Type B port. My application is to run powerpoint without using PC , using USB drive and the use of remote control.

The salesman was not able to clarify to me the use of the USB ports. The manuals did not give information about the use of the ports.

Can someone out there more knowledgable tell me the use of USB ports in projectors and in particular if both meet my requirements ?