Power cable for Dell PowerEdge T410 backplane?

Hi all,

I’m looking to replace the whiny power supply in my Dell PowerEdge T410 with a new supply.

I have a Seasonic SSR-550FX (Focus Plus 550 Gold) which is modular. I think I have everything I need, and all the cables look standard, except I’m not sure what plugs into the hotswap front 6-drive bay backplane.

The backplane is powered by two 4-pin cables. They look like ATX 12V cables, but I’m not sure if they’re the same. Does anyone know if the Dell drive backplane is compatible with standard ATX 4-pin 12V cables?