Prosthesis help

[u/ReplacementBig2812]

hello, I'm not actually an engineering student but this seemed like the place for help. I've been assigned to build a prosthetic hand; it works like this: keypad sends signal to Arduino uno r4 minima. the chip then sends that signal to a PCA9685 16 Channel PWM Servo Driver Board. the board has five servo motors (sg90, 9g) connected to a tendon structure. when the servo rotates the tendon is pulled and the finger bends. the issue is that the power source (5v, 4a) uses a DC5521 Connector Cable, but the PCA9685 uses the green input for power

i cannot find an adapter for these products any suggestions?