Newegg has the Rosewill RC-209 add on card for sale for $10 AR.  I wanted to see if anyone knows if they would work or not for a unRaid setup.  Thanks.

 

Link: http://www.newegg.com/Product/Product.aspx?Item=N82E16816132006&cm_mmc=EMC-IGNEFL082107-_-harddrives-_-E5R-_-16132006&CMP=EMC-IGNEFL082107&ATT=N82E16816132006

You may want a better answer from someone who has actually tried one, but I can see no reason it wouldn't work.  It's based on the Silicon Image Sil3114 chipset, which is used on many motherboards used here, and uses the sata_sil driver, commonly used here also.  Other Linux users are happy with it, using sata_sil.

 

Newegg reviewers mention unreliabilty problems often, so if it works - great, but if not, you are only out $10.  Several reviewers also mentioned no support for drives greater than 500GB.  Its performance will be limited by the PCI bus, fine for single drive access, but will impact simultaneous access.