TheRTL8214B/FBintegratesquadindependentGigabitEthernettransceiversintoasingleIC.Thedeviceperformsallthephysicallayer(PHY)functionsfor1000Base-T,100Base-TX,and10Base-TEthernetoncategory5UTPcableexcept1000Base-Thalf-duplex.10Base-Tfunctionalitycanalsobeachievedonstandardcategory3or4cable.