Chase Holfelder. To meet the MIDI hardware specification, to be class compliant as a USB device all it has to do is report itself properly when plugged in. The theoretical maximum is one twentieth, so you are effectively using all your upload when downloading at max. With the supply off, use insulated alligator clip leads to connect it the 4-pin power connector on the SBC. If you fall into a group where any of that is a problem, or else you just want more control over the process, then you should check out Section 2.
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