How to charge old Zagg keyboard?

Have original iPad with old Zagg keyboard I've not used in years and have lost the charger and cord. Requires the older connector similar to that on my 6 year old Cannon. I have a cord with that connector, but it is to use for connecting camera to download images and has what appears to be a fuse on the line. Does anyone know for sure what voltage these old keyboards require and whether I can use the camera connector without likely blowing the fuse? Also, if I have to buy a new cable to use for charging, what is name of that connector? Realize this if not actual Apple question, but will appreciate help.