The 2.0mm vertical DC power jack is a top-entry, through-hole PCB connector featuring a 2.0 mm nickel-plated brass center pin and a three-terminal switched circuit. Rated at 30 V
The 4.20mm vertical dual row wafer connector DW-WF-242050 is a vertical through-hole power connector featuring a 4.20 mm pitch, brass tin-plated terminals, Nylon 66 UL94 V-0