The Intel 82546EB Dual Port Gigabit Ethernet Controller is a
single, compact component with two full Gigabit Ethernet MAC and
PHY layer functions. Packaged in a 21x21 mm PBGA, the Intel 82546EB
Dual Port Gigabit Ethernet controller provides dual port
functionality without additional board space requirements for the
component and enables a dual port Gigabit Ethernet implementation
in a very small area.