I know, it’s lame that there is no on/off switch but I would like to share my simple solution that I am sure some of you guys have already thought of. If not just get something like this… works like a charm.
Where did you get this?
Yes, please do tell where you got this.
Another option is to get an inline lamp switch from the local hardware store. Pretty easy to install. I’ve done a couple of synth power supplies that way.
https://www.familyhandyman.com/project/how-to-install-an-in-line-cord-switch/
Hey guys, I got it on amazon. It is just a DC power extension cable with an inline on/off switch.
Looks like it has the right plug.
Can you share the item name / number?
Or Amazon link?
I did an image search on google.
This seems to be the one.
https://www.amazon.co.uk/Aukru-Connector-Charger-Switch-Arduino-Black/dp/B07RTB2PMF
Have not tested it myself though.
Yes, that looks like the right one.
Here is the link I used (amazon.it).
https://www.amazon.it/gp/product/B07RTB2PMF/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1
I got this one - works well:
https://www.amazon.com/dp/B08D6TN9DF/ref=cm_sw_r_cp_awdb_imm_t1_qnjbGb7AP55E3
nice!
Just got one from Amazon.
I actually got two (they came in packages of 2) 
Now I have to find a Siring 
Just a quick video about the one I got.