transceiver ICs Industry standard footprint ROHS -compatible Applications: 10/100 Base-T 1000 Base-T POE Hubs, switches and routers PCs and modems B78476A8317A3 is a surface mount ferrite toroid , case and potting. This is a single port 1000 Base-T magnetics module, optimized for full duplex applications. Note: B78476A8317A3 could be called out