Electricity is magic

[Priesters]

Or at least it is to me!  

After reading an awful thread from someone else in which a lot of damage appears to have been done due to a simple mistake I want to check the safety of my own set up if someone wouldn’t mind confirming.

The picture below shows a StarTech USB 3 hub which requires a 12v 3amp supply directly plugged in to my Powerbank with a 12v 10amp output.  Is this ok?

I also have a StarTech USB extender over Cat5/6 unit for longer distances between laptop and scope.   This cat5/6 unit requires a 5v 2amp supply.  I am planning on connecting this to the Powerbank via  the car charger shown in the second photo which I believe drops the voltage down from 12v to 5v and 2.1amps.  Same question - is this ok?

I’ll obviously take great care not to get the two mixed up and supply 12v to the Cat 5/6 unit.

Thanks

Andrew

[Paul M]

That all looks fine. Worth noting that there are 2 x USB outlets on the power bank. The adapter looks to be 2.4 Amps total whereas the power bank is 1.5A per socket.

So if the USB extender requires over 1.5A then stick with the adapter if it is indeed 2.4 A total.