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30GB 1.8" IDE, 160GB 2.5" SATA and a 3.5" 180GB HDD and I want to power them all from the SAME power supply, how?

I am not looking for how to build the enclosure because that part isn't electrical (an area of expertise where I'm lacking), just how do I power them all because I am fairly certain that the USB port is not strong enough on it's own. Thanks all!

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mikeasaurus7 years ago
frollard is right. Also, without getting too electrical, if this is going to be a semi-permanent setup you could easily change out your power supply for a higher wattage PSU to give you all the juice you need!
ralegg (author)  mikeasaurus7 years ago
this is what I'm talking about, but how do I go about this, I have a laptop so I still want to connect the drives via USB but 1 main power supply for the 3 HDD.
Hmm, swapping a PSU in a desktop is no biggie, in a laptop things get a bit more complicated, and expensive. I'm sure there's a way to add additional power to the units while they are plugged in, but why bother? I think what you are describing is a very unique scenario with no easy answer. You must have a specific application to want to try this setup. The significant reduction in power is obviously a tell-tale sign that you are pushing the boundaries of your laptop.

Why not compile all the data into just one drive? Just swap out drives so there is only ever 2 plugged in and simply transfer what you need over.

Alternatively, you might be better off just running a garbage desktop for all the drives and just connect to it over LAN. This gives a clean enclosure and satisfies the semi-permanent criteria.

Hope that helps, good luck!
ralegg (author)  mikeasaurus7 years ago
Thanks for the response, basically the idea is that I have 3 HDD's laying around that I want to back up my movies on. I want to hook them all up to a single USB hub and wanted to know how I can power them all from 1 cord as well. This is basically cord management more than power management because I am going to be building an enclosure that has the USB hub inside it and I just wanted to see how I can get it so that only 2 cords come out of the enclosure, USB and power.

So my question is, how do I make it so that if I bought something like this:
http://cgi.ebay.com/2-Port-USB-AC-Power-Supply-Adapter-Charger-US-Universal_W0QQitemZ200350786482QQcmdZViewItemQQptZAU_Electronics_Batteries_Chargers?hash=item2ea5d663b2&_trksid=p3286.c0.m14&_trkparms=65:15|66:2|39:1|240:1318|301:0|293:1|294:50
How do I make a cord that can combine this device (above) as well as my external 3.5" which is on it's own power supply
This is basically cord management more than power management because I am going to be building an enclosure that has the USB hub inside it and I just wanted to see how I can get it so that only 2 cords come out of the enclosure, USB and power.

I think I understand what you are describing.
  • They sell usb squids which will eliminate the usb cables down to just one.
  • Combine that with a power bar.
  • Toss this all into an enclosure, bucket or whatever and you're set!
This set up will have exactly one wire from the wall (power bar plug), into some kind of enclosure (full of 3 HDD, the powerbar, and the usb squid), all plugged into the usb squid (also in enclosure), with one wire coming out into your PC.

I still think your best bet it to eliminate the multiple HDD and just compile all information on one device. I hope this helps some. Good luck!

ralegg (author)  mikeasaurus7 years ago
Thanks, this is what I was looking for!
frollard7 years ago
the 1.8 inch and the 2.5 inch can be run off usb power - a 3.5inch drive needs its own power supply. Your usb>1.8"ide adapter or sata adapter should supply the power fine for the small ones.