I can't find a spec/name part number for the balloon power connector on the wiki. The manufacturing info just says: CON_PH200_4WAY Searching for 'PH200' online gets chris's balloon connector pinout datasheet, and not much else. That says 'Molex PH200', which is a clue... RS has never heard of a 'Molex PH200', farnell thinks its a CCTV camera. So - more details needed please. It's one of the first things someone with a new loon needs to know. How might one specify such a thing, and where might one actually buy it? Wookey -- Principal hats: Linaro, Emdebian, Wookware, Balloonboard, ARM http://wookware.org/