I would like to build a small NAS with the new Pi 4. As it has two USB 3.0 ports. My idea is to have
3 x 4 TB WD Elements Portable USB 3.0 and One Raspberry Pi 4b 4GB RAM
Here comes the big question how to power all the HDDs and the Pi?
I would like to use one USB 3.0 Powered Hub for both powering all devices and data transfer.
Could you please suggest one that you are sure would have enough Power and have all the required protections(back-powering) as explained in RPi Powered USB Hubs
Other alternative is to use the Powered Hub just for the HDDs and power the Pi with OEM Power Supply.