Adding more sata power cables

[jcgigs]

i have a enermax eg851axvh w 660 watt psu, it has 2 sata power connectors, and a bunch 4 pin connectors, i have both sata connectors used up for hdd's, i want to add more sata hdd's is it just as simple to add the 4 pin to sata adapter to have the rite sata connection to add more? as in the 4 pin connector does not have the 3.3 volt orange wire... thanks

 

[popatim]

its not used often in real life.
I've have these in stock and have used them in my own machines.
http://www.newegg.com/Product/Product.aspx?Item=N82E16812123119