I have a antec true power 550 modular psu. I ordered some new hard drives and grabbed the first modular cable I saw. It fit perfectly but wasn't the right one. Needless to say, I was very disapointed in the life span on the drives. So if anyone has a true power series psu and would like to take a picture of the connectors that fit into the psu, it would be a big help. With luck, that will be the only time I see sparks fly out of my rig.