Scalable DIY SATA JBOD - Will store over 250 Disks!

[enderTown]

@Voodoo

Could you explain this on a lower level?

Yep, @uChiaFarmer nailed it:

@uChiaFarmer

You can do this by connecting another wire from the 12v to a 12v-to-5v converter, this becomes your 5v supply.

I use one of these per 10 disks: Amazon.com: BANKEE DC 12V 24V to 5V 15A Converter DC Voltage Reducer Regulator Step Down Buck Converter Power Supply Volt Transformer Module (12V/24V to 5V 15A): Electronics

The 12v line from the PS goes into the input terminals. I also put the 12v line from the SATA power connector on these input terminals - a natural splice. Then I put the 5v line of the SATA power connector on the output terminals. Now I have a single line running from the PS, interrupted briefly by a 12v-5v converter, then finally 12v and 5v going into the SATA power connector. Here’s a pic for clarification:

@matthewjbauer

all you would really need is a decent PSU, like 800w+ with a power switch on it

Of course, but have you ever priced a good 800 watt PSU? These refurbed 1200w server PSUs go for $55 on Amazon and they are rock-solid!

@uChiaFarmer

I’m sure this dude has his reasons.

Because money! See above. Although after the additional breakout board, wires and 12-to-5v converter maybe I’m not actually saving any money.