FATA HDD on PowerEdge 2950. Will it work?

I am going to buy some dell poweredge 2950 servers. i know they support sata/sas hard drives. I found some hard drives on ebay. im pretty sure they are fata connectors. here is a link to them   http://www.ebay.com/itm/300867851220?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Will this work on the PE 2950? I need to know before I buy the HDDs. or if I buy them.