The 1-Wire Mini Host fits as an extension on the 1-Wire Host System. It adds another eight 1-Wire channels to the four channels that are already present on the 1-Wire Host System. You can use the 1-Wire Mini Host as a standalone board in your project. In this capacity, you can solder the 4-pin header as you wish, thus facing upwards or downwards, or you can opt to solder another means of connection.
More information and software can be found on the Axiris website.