Voodoo Lab CBAR21-R
A 2.1mm x 5.5mm right angle barrel connector that can be soldered to create custom length power cables. DIY parts are recommended for users who have experience soldering.
Voodoo Lab® 2.1mm Right Angle Barrel Connector
$2.05
A 2.1mm x 5.5mm straight barrel connector that can be soldered to the 36 in/ 92cm cables with a bare end. DIY parts are recommended for users who have experience soldering.
First time I ever used these, I’m sure they work fine.
It does not get any better than this