The list of features on the K9N2 Diamond is comprehensive with four USB ports, one Firewire and two eSATA on the I/O panel along with dual Gigabit LAN (do people really use two Ethernet ports? - ed.). There are also two more USB ports and a second Firewire on a bracket as well as two eSATA ports on a pass through bracket. MSI includes a Creative X-Fi PCI Express riser in the package that uses the only PCI Express x1 slot on the board and the two regular PCI slots would be blocked if you use substantial graphics cards, not that this is unusual. There's a single IDE connector next to the main power block and a second IDE connector at the foot of the board that is connected to the JMicron controller that runs the two eSATA ports. Add in micro buttons for Power, Reset and Clear CMOS and a handful of somewhat intense LEDs and you have a high-end gaming motherboard that delivers the sort of quality that you expect from MSI.