Raspberry Pi Farm with 3.5" HDD

How can I connect 12x 4TB WD Purple HDD to one Raspberry Pi 4 Model B ?
Can I use SATA to USB Converter ?

Can I use SATA to USB and then connect to Raspberry Pi using 20 Ports Industrial USB Hub ?, Is that Possible ?

Would do POWERED USB hub + POWERED SATA to USB converters. The USB only, USB to SATA will not work with desktop drives.

You could also consider a NAS setup.

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NO… VERY WRONG !
It Is USB SATA FOR 3.5" HDD

Powered USB TO SATA IS CONNECTED TO 3.5" HDD, THEN USB TO SATA IS CONNECTED TO USB HUB and then CONNECTED TO Raspi

To clarify, for each hard drive, get something like:

So you need 4 of those, 1 for each drive.

Then you need lots of USB ports to plug into, that should ideally be powered too:

Super simply stuff right there.

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Read carefully… NOT 4pcs of harddrive, 12x 4TB HDD, 12pcs of 4TB WD Purple HDD…

Don’t answer FRIVOLOUSLY !

ALSO WITH THIS USB HUB, NOT THAT CHEAP HUB, I Very Hate Cheap Stuffs
This is industrial grade… Cost isn’t a problem !

https://www.alibaba.com/product-detail/ORICO-Industrial-30-Ports-USB2-0_62221836757.html