Unsure what type of drives are these (ATA 100?)? not sure what you mean. I can not find the paperwork on the equipment.
But i do know that one hdd is a 7200 rpm and the other issomewhere in the 5400 to 5600 rpm range.
They are both connected on the same cable as my motherboard only has one place to land this cable. I don't know of any other way.
As for the correct cable for the speed of the HDD, I was unaware that they made different types.