I have a 2GB Pi4, powered by the Universal USB-C 5.1V 3A supply.
I was planning to run a NAS with 2x 2TB HDDs. Connected via the SATA to USB adapter using USB 3.0 connector.
Problem is that the Pi4 only seems to have enough juice for one of the HDDs at a time. As soon as I plug in the second HDD, they both go into a “insufficient power” mode where they struggle and fail to initialise.
Any ideas how I can get them both working?