seems like the dumbest question ever

OK what cable do i need to update my hyperion EOS0610i
i cant find this stupid cable it is referred to but nothing else

i remember seeing it for around 20 bucks(which is ridiculous for wire) but i cant find it again its not the cable to put 2 of these chargers together
i just want to update (20 bucks to update awesome)
go Hyperion charge to make their charger work properly