And my SSD only uses 0.18A. It supports 1.2A total. That means it has plenty of power. I doubt a card reader uses much power.
You can find the power info here.
I'll try using my one of my hubs with the Pi Zero, without plugging it into the hub into the wall. Might not work, because it has no ethernet port, I'm not connecting a monitor to it. They are great for headless servers. That's what SSH is for. There will be three things plugged into the hub, ethernet, card reader, and the SSD.
I have a USB thing that tells me how much power whatever you plug into it is using, then you plug the dongle into your computer or whatever.
If it works, I'll buy a cheap non powered hub, and just use the Pi Zero. That'll save me $60+.
Amazon really doesn't want me to find the enclosure I saw last night for $30. Can't remember exactly what it was called. Oh wait, that's what my history in my browser is for. More like early this morning. Search for 2.5" usb enclosure, and you won't find it. Amazon changes the results, so you can't find stuff. Pretty shitty of them to do so. StarTech has a rugged one for $33, put the 240 GB drive in that, and if I get the 960 GB, put that in the expensive one. It came with a shitty USB cable, according to a review, I use a Belkin USB Type C to Type A cable with it.
I was right, it has Mini in it. Amazon's shitty search found a RAID enclosure by them, and I clicked the brand name, and found the one I saw early this morning. No idea why Amazon can't find it.
If the USB cable that comes with is good, then it's better then my $50 enclosure.
But I'll probably buy the rugged StarTech.