No disk memory, new HDD?

[smurph]

I now have very little room left on my hard disks.
I have two extra slave HDDs.
I have no SATA ports left on mobo (1 for main, 2 for dvd, 3&4 for slave HDDs).
Can I get PCI SATA card, and a power splitter for a new HDD?

 

[PP Mguire]

Yes.

 

[strollin]

You could do that but how big are those hdds on SATA ports 3&4? If they are relatively small drives it may make more sense to replace at least one of them with a larger drive.

 

[smurph]

Existing slave HDDS are 2 & 3 TB! [see updated sig]
I have order parts on ebay and await....my only worry is that i saw a seller on ebay say a similar PCI card wasn't compatible with win7 64bit, my seller didn't advise, not did they or 4 others reply to my question....is there a card like that does win7 64bit?