Hi Nolan -

Search the archive for "breakout-gs header size" and you'll find a thread a weeks ago where Dave Hylands sez:

   DigiKey H2181-ND is the 4 pin female housing.
   H3307-ND is the 4 pin male header (solders to the breakout-gs).

Digikey shows the H3307-ND as 1.25 mm pitch, so at first I  thought that it wasn't right until I did the conversion =>  50mil ~ 1.27mm.

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On 9/29/06, Nolan Finn <nfinn@uiuc.edu> wrote:
Hello,

I recently purchased a Gumstix Connex 400sm-bt and a Breakout-gs expansion board.  I am having trouble finding headers for the 50mil pitch holes on the Breakout-gs.  Has anyone else encountered this problem or found a location to order some compatable headers?  Any help would be appreciated.

Thank you
Nolan Finn