I was not able to find the weight data for Euclid - maybe someone in the Intel office can put it on some scales.
Regarding the wiring question though, I remembered that a pinout diagram for the Euclid's power adapter had been posted to the forum.
Well regarding the weighs, we will publish the data here and on the website today.
regarding the power we usually use a 5V BEC Module, and connect it directly to the power adapter (which is lightweight), the BEC can be connected to an external power supply e.g. The drone's battery.
you can find it here : Hobbywing 3A UBEC 5V 6V Switch Mode BEC For RC Models - US$2.99