Package 128-BFQFP contains the ICs.The Bulk package contains integrated circuit.Using Surface Mount, integrated circuit is mounted.The 10/100 Integrated Switch type is available in many integrated circuits.Search the KS8993 family for similar integrated circuit systems.Port Switch/Network Interface is the appropriate place for the ICs to be applied.This ICs complete is packaged by 128-PQFP (14x20).