There is a package 128-BFQFP containing the ICs.The way of mounting integrated circuit is Surface Mount.There are numerous integrated circuits that make use of this type of 10/100 Integrated Switch.By searching for the KS8993 family, similar integrated circuit systems may be found.Port Switch/Network Interface is the appropriate place to apply the ICs.Packaged by 128-PQFP (14x20), the ICs complete is in good condition.