Livestreaming and recording at same time

Solution needed:
I livestream on Zoom using multiple cameras with HDMI outputs
I want to keep HQ recordings from every camera for post

Can I do this with ATEM Mini Pro ISO?
My biggest question concerns the USB output port. It seems that in the Pro ISO, there is only one USB output. This means I can either record the camera feeds to an external drive OR live stream to zoom, but not both at the same time.

Or is my thinking off track here?

Yes .. THIS is what ISO mean .. ISO recording .. SO Atem will record all cameras and audios and record XML file with CUTs .. U can open this project later in DAVINCI RESOLVE and EDIT all CUTs .. Or Load recorded files of all cameras into any other EDITor ..

U can stream thru ETHERNET into FACEBOOk , YOUTUBE etc .. If U need ZOOM , u can use any other HDMI grabber (im using smallest ATEM mini for it ) ..