can you buy extra sata cables? Corsair 520hx

You would need to contact Corsair.
http://www.corsair.com/company/contacts.aspx

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

and if i connect that to my Corsair 520hx will it be fine? i no nothing about psu's/rails

This link shows how the connectors are distributed. http://www.houseofhelp.com/forums/showthread.php?t=5291...


And, yes, you'll be fine adding additional Corsair cables. You can contact our customer service group for extra cables.

http://www.corsairmemory.com/company/contacts.aspx

Nezah the 520HX comes with 2 Sata power cables with 2 connectors on them so you can have 4 drives

ok you have a few options.
Least evasive is to use your molex connectors, and converter to sata power.
how bout something nice like this SATA-2-Molex Adapter - Black
http://www.performance-pcs.com/catalog/index.php?main_p...

I have the 620hx and have 4 hardrives hooked up using one sata cable
myself i just used Connectx™ Low Profile Molex Connector - Punch Down with Cap - Black
http://www.performance-pcs.com/catalog/index.php?main_p...
a little more work but make cables realy neat...

think mine are red...
you should fined either solution a easy fix