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I have a 12v 8 channel relay https://www.modmypi.com/raspberry-pi/relays-and-home-automation-1032/relay-boards-1033/8-channel-12v-relay-module which I want to connect to my RPi3 so I need an external power supply.

I watched this video https://www.youtube.com/watch?v=Ur0w7VeLX08 which is useful for a newbie like me but the power supply has female connections enter image description here

Do I need to / can I modify a supply myself to create one of these? I can't seem to find anywhere to purchase one.

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  • Obviously it's possible to make a PSU with a custom connector if you cannot buy one. I don't quite get the question.
    – Dmitry Grigoryev
    Commented Jan 14, 2019 at 12:07

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Just did a quick google search, you can combine perhaps something like this https://www.pololu.com/product/2449 (DC Barrel Jack to 2-Pin Terminal Block Adapter)

DC jack to two pin

and then grab two male-female jumper wires e.g. Ebay

Jumper wires

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  • Thanks for the reply. I was thinking of just stripping the wires in a 12v power supply and soldering on to female jumper cables. Do you think that is OK or is the adaptor you shared performing some additional function?
    – Stuart Brown
    Commented Jan 13, 2019 at 23:10
  • Oh definitely DIY it it's just some electrons moving :) Since you used the word 'newbie' I assumed you might not have soldering equipment @StuartBrown
    – trishmapow
    Commented Jan 14, 2019 at 0:02
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    All the gear, no idea ;-). Seriously though, thanks for your help, I couldn't really find anything online about how to power it
    – Stuart Brown
    Commented Jan 14, 2019 at 0:18

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