I'm getting nearer to setting up my RPi4 and I'm trying to work out if I'll need a powered USB hub, if so I need to sort out power points (I've used up the four built in and four in an extension). I've googled for published stats on the power requirements for the various bits that will be plugged in to the USB ports and not got very far. Ultimately I'll have wifi keyboard, haupage dual tv tuner, 128GB ssd (for boot), powered 6TB HDD for films etc and a 5V, 3A psu.
Whilst messing around I'm using a usb powered 600GB HDD rather than the 6TB powered HDD and I've already found that if I swap the SSD for another HDD the Pi4 will not boot.
Is anyone useing something similar to what I'll end up with and is it stable? I'd really not have to sort out more sockets.