The power supply only has a 2 year warranty comparable power supplies have 5 or 10 year warranties.
I have heard bad things about raidmax but I have no idea about that specific model. Will have to ask someone who is more experienced or check out reviews online.
The cold cathode has Input Connector: Molex 4pin connector with pass-through.
Basically all power supplies has 4 pin molex (rarely some compact ones only have SATA power plugs now)