Yup... It's a DC power plug jack. Exciting stuff.
Check this action out - It's a panel mount toggle switch, yay! This switch is unique in it's operation as it has a spring inside that automatically returns the switch to the center-OFF position.
Male Strip - 5 per Strip, 0.1" spacing
Micro Deans plugs are usually used in RC vehicle applications but can also be used for all kinds of other high current, small form factor projects. They even have a polarity protection feature built into the design, bonus!
The IRFZ44N is a very powerful useful N-Channel FET, with only 0.0175ohms resistance pushing 20 amperes at 5V!