LOM Flexibility - The 10 GbE Changeover
Those accustomed only to desktop-class Gigabit Ethernet LOMs may be surprised to know that server motherboards can offer a variety of SKUs differentiated by their networking port configurations off of a single LOM controller. With 5 GT/s of bandwidth on the PCI Express bus, the X540 can interface with multiple port daughter cards. As shown here, OEMs might opt for a pair of 10 GbE SFP+ ports, two 10GBASE-T with two 1 GbE ports, or four 1 GbE ports. Part of the benefit of the 10 GbE changeover is that it opens more doors for how that bandwidth can be implemented.