Adafruit Feather Stacking Headers - 12-pin and 16-pin female headers [ADA2830]

The adafruit feathers stack, so you don't have to wire them together. Brilliant! But you do have to get the male to female header connections right. If you think of it like a sandwich, the male header goes on top, the stacking header in the middle and the female header on the bottom.

It works

Pins arrived bent out of shape because they are super thin, like you would have on a dip chip instead of squared header pins... They were also too long exacerbating the issue

Wish I had bought them with the board at the time of purchase but the bundle was not available at that time.

Good product