a300 datacable with crocodile clips

I have a300 datacable with crocodile + - clips on it anyone know what these are for also how i modify this cable to work with nas a300 or All samsung unlocker

A300 datacable with crocodile + - clips its for flashing .

its flash cable . the crocodie for external power .

Thanks n Regards

what power suply is to be used with this cable can it be converted to use nas 300adv as i have to remove return for servicing from phone is there any way i can do this or modify cable to do this

thanks in advance