Speaking of illegal weird cables: I actually have a Y shaped cable, USB Type-A male to USB Type-A female with an extra red USB Type-A male to inject more power if the host can’t power the device otherwise.
I’ve used it once to attach an external HDD to an Android Phone with an OTG male micro-B to female A adapter. It worked but it was kind of stupid :-D
Speaking of illegal weird cables: I actually have a Y shaped cable, USB Type-A male to USB Type-A female with an extra red USB Type-A male to inject more power if the host can’t power the device otherwise.
I’ve used it once to attach an external HDD to an Android Phone with an OTG male micro-B to female A adapter. It worked but it was kind of stupid :-D
Those used to be common for stuff like external drives (HDD, DVD…)that needed more power than old USB ports could provide, so they used two