it's almost a thing of equipment.
i use a cable of a usb bracket and a mini usb extension cable.
for the first gen. Choc mini you don't have to cut the usb bracket cable plug, for the 2nd gen. you must cut 1 female plug (black female plug) as shown in the video.
to make the case fitting, you better use a file. for the video i was to lazy to get the file...