This is a 6-pole stackable header that features a pitch of 2.54mm, which makes it compatible with a variety of electronic components. The total height of the header is 23.5mm, with the housing accounting for 11mm of that height. The pins themselves are 12.5mm in length and have a width of 0.62mm and a thickness of 0.64mm. The header is designed to be stacked with other compatible headers, allowing for easy expansion and customization of your electronic projects.