Hog 3 or full boar

Hi guys, we are looking at buying another console we currently have the roadhog and a hog pc system. I have been looking at the differences of the full boar vs the hog 3 and the full boar seems to have greater expansion options. will the hog 3 support usb keys? Its too close to call and would like to hear other peoples opinions. We are a drive way hire company in Australia and we do some production. We mainly top up other peoples stock.
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