Reddit reviews Eyeboot DC Power 12V 5.5mm x 2.5mm Barrel Male Plug Connector Pigtail 16AWG
We found 1 Reddit comments about Eyeboot DC Power 12V 5.5mm x 2.5mm Barrel Male Plug Connector Pigtail 16AWG. Here are the top ones, ranked by their Reddit score.
DC barrel plug and receptacle dimensions: 5.5 mm x 2.5mmCenter: PositiveLength: 50 cm, Material: 16 AWGQuantity: 5 pieces per packColor-coded wires; red(+); black (-), with pre-tinned pigtail leads
The following might get you to where you need to be. 16 awg is rated (per chart) at 10 ampacity.
(Not recommending product as I have no experience with or use of..)
https://www.amazon.com/Power-5-5mm-Barrel-Connector-Pigtail/dp/B01N21RV6G
Side note: the 18awg might work fine, especially if plug to supply distance is very short. 12awg is over kill. If you are going to make your own use 14.