Question Setup question regarding HDD and raspberry pi. HELP

[Zashuiba]

Hi Internet, I come to you in times of need.

I don't know how to connect the data from my HDDs to my raspberry pi. I've thought of this many, many ways and I just don't see how it's possible. Maybe you can come up with an idea?

This is my setup:

• Raspberry pi 1 (2014)
• 7 HDDs (I'd like to use all of them)
• 400W ATX power supply (I would short it so that it turns on without a mobo)

Important: I care not about data throughput. Obviously, USB 2.0 is not going to yield too high speeds.

In a perfect world, I just want to somehow interconnect data from the HDDs to the USB interface of the Pi, while the HDDs themselves are powered by the external power supply.

I bought some "SSD to USB" cables (7 of them, actually), but they come with the power portion welded together! So it's useless. I also bought a USB hub, but its wall wart is just 12 W ! That's not going to power even a single HDD. Maybe connect the SATA adapters to the USB hub but with another, much more powerful, DC adapter? But I'm not sure the hub can handle such a current.

https://imgur.com/a/sCa5xiz

Ideas?
Thanks in advance.

 

[Aeacus]

I bought some "SSD to USB" cables (7 of them, actually), but they come with the power portion welded together! So it's useless.

Well, those adapters are for 2.5" SSDs, with far less power draw.

For 3.5" HDD, you need adapter with plenty of supplementary power. Like this one with dedicated 24W of extra power,
amazon: https://www.amazon.com/CLAVOOP-Adapter-Converter-External-Seagate/dp/B0CYLK9QFG

For starters, but just one and try it out. If it works, you can buy more. And no need to use ATX PSU at all.

 

[USAFRet]

4 bay HDD adapter
https://www.amazon.com/dp/B07KY73BNQ

Connect via USB.