This is a right-angle, 24-pin Molex Mini-Fit Jr.™ connector, commonly used as the power supply connector on ATX motherboards. Two rows of twelve pins are broken out two rows of through-hole male headers. See the datasheet below for pin spacing dimensions. Pair this connector with a standard computer power supply and you can source a number of different voltages (+3.3V, +5V, +12V, -12V, -5V) to your project.[ https://elecena.pl/product/958271/atx-power-supply-connector-right-angle 2009-11-18 https://elecena.pl/product/958271/atx-power-supply-connector-right-angle 2016-11-25 https://elecena.pl/product/958271/atx-power-supply-connector-right-angle 2016-11-28 https://elecena.pl/product/958271/atx-power-supply-connector-right-angle 2016-11-29 https://elecena.pl/product/958271/atx-power-supply-connector-right-angle 2016-12-09 https://elecena.pl/product/958271/atx-power-supply-connector-right-angle 2016-12-13 https://elecena.pl/product/958271/atx-power-supply-connector-right-angle 2017-11-24 https://elecena.pl/product/958271/atx-power-supply-connector-right-angle 2017-11-28 https://elecena.pl/product/958271/atx-power-supply-connector-right-angle 2018-11-21 https://elecena.pl/product/958271/atx-power-supply-connector-right-angle 2018-11-27 https://elecena.pl/product/958271/atx-power-supply-connector-right-angle 2022-02-22