Raidmax uses many different manufactures. Along the same quality as HEC/Coolmax/Apevia/Diablotek/Logisys. Rosewill/Roadkill is better quality overall. But still would not recommend Rosewill.
If your so for sure, tell me who makes them. Its the same company that make the AH/AX/Hybird/K and Aurora series. The other models are made by Sun Pro.