Back when I was deeply into this sort of thing we purchased hospital grade power cables (green dot) for less than $20. You get a well made cable and connectors.

Back when I was deeply into this sort of thing we purchased hospital grade power cables (green dot) for less than $20. You get a well made cable and connectors. https://www.digikey.com/en/product-highlight/q/qualtek/hospital-grade-power-cords https://www.digikey.com/en/product-highlight/q/qualtek/hospi...