http://en.community.dell.com/blogs/insideit/archive/2009/07/02/more-embedded-nics-on-poweredge-servers-a-game-changer-for-appliance-oems.aspxIn response to many requests from our OEM customers, Dell has increased the number of embedded network interface cards (NICs) in our mainstream 1U and 2U PowerEdge servers (the PowerEdge R610 and R710 ) from two to four -- these truly are appliance-inspiredenCommunityServer 2008.5 SP2 (Build: 40407.4157)