USB Hubs question
by business_kid from LinuxQuestions.org on (#5FJ8F)
Can someone briefly explain what goes wrong it a powered usb hub sends regulated 5V power back into the Pi 4?
/Background.
It's actually quite hard to get a separately powered usb hub here in the EU. Amazon are a washout, Europe seem to be poorly supplied also. Things from the UK have specious charges from Ebay & Amazon "in case we have to pay duty," ... which they definitely do not to Ireland. Maybe if I was multilingual, I could choose better in Europe. Sadly, no.
I did eventually get this one because my sdd is draining the main Pi 4 PSU, voltage low warnings are onscreen and consequently keyboard/mouse perform poorly. If you find a closer, neater, better, cheaper one I really don't want the url, so please don't post links now. Don't you know that last request will send everyone opening a search tab :)?
/Background.
It's actually quite hard to get a separately powered usb hub here in the EU. Amazon are a washout, Europe seem to be poorly supplied also. Things from the UK have specious charges from Ebay & Amazon "in case we have to pay duty," ... which they definitely do not to Ireland. Maybe if I was multilingual, I could choose better in Europe. Sadly, no.
I did eventually get this one because my sdd is draining the main Pi 4 PSU, voltage low warnings are onscreen and consequently keyboard/mouse perform poorly. If you find a closer, neater, better, cheaper one I really don't want the url, so please don't post links now. Don't you know that last request will send everyone opening a search tab :)?