I just got the PSU and I couldn't fit any of the Sata power cables into my HDD's. After googling it a bit it seems a lot of other people have had this problem. The way I got around this? I got a old HDD and basically pressed as hard as I could rather than trying on one of my SSD's and breaking them. It fit's but it's such a tight fit and not easy to get off. I took the risk anyway's and put the cables into my HDD's and they work fine. Just a head's up to anyone who get's this PSU and decide to RMA it because of this issue - you can use the cables just have to press really hard. Comparing it to my old non modular BeQuiet! PSU cables it seems the cables are really thin in height.