In package 128-BFQFP, you will find the ICs.There is a package named Tube which includes this module.Using Surface Mount, integrated circuit is mounted.This type of 10/100 Integrated Switch can be found in many integrated circuits.The KS8993 family contains similar integrated circuit systems.This ICs should be applied to Port Switch/Network Interface.This ICs complete is packaged by 128-PQFP (14x20).