User Profile

[yamakazi666]

Nice ! I have a triple port USB block for light travel too (2 USB A and 1 USB C) one of the USB A share the same power with the USB C, but I plug my Blackbox on the other as it is more subject to ground noises, and it works perfectly for what OP need...

[yamakazi666]

CHEAP 1 CHANNEL USB ISOLATOR (300 mA)
CHEAP 4 CHANNEL USB ISOLATOR WITH EXTERNAL POWER (600-800 mA)
CHEAP AUDIO ISOLATOR
You can aslo buy this cheap ass USB VOLTMETER to check on your power.

[yamakazi666]

I work with a lot's of USB hardware, and it's a pain to keep it clean ^^
Worst are thoses that power and data using USB.
AND... Blackbox / Bluebox are the noisyest piece of hardware I own I not properly powered.

I manage to power...

[yamakazi666]

yep, I have