The most common variety of DC power sockets (barrel jack/barrel socket), 5.5mm hole with 2.1mm center (5.5x2.1)
This variant is "slimmer" than the normal ones, needing only an 8mm hole or so and the bezel is only 10mm or so. Also has an attached rubber boot/cap which can plug into the hole to keep stuff out. I'm not sure how water proof it would be, but should be at least somewhat "splash" resistant.
Nut included. Solder tabs on the back to connect your wires.
I also have a few other styles of 5.5/2.1 socket and plugs, check my listings of these here:
That’s about all that can be said!
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