TIP8 5.5 X 2.1mm Female to male DC Connector
A: 6 (O.D) X 4 (I.D)mm with center pin (black)
B: 6.3(O.D) X 3.0(I.D)mm (green)
C: 5.5(O.D) X 2.5(I.D)mm (white)
D: 5.5(O.D) X 2.1(I.D)mm (blue)
E: 5.5(O.D) X 1.7(I.D)mm (yellow)
F: 4.8(O.D) X 1.7(I.D)mm (yellow)
G: 4.0(O.D) X 1.7(I.D)mm (yellow)
H: 3.5(O.D) X 1.35 (I.D)mm (red)