RTL8306E-CG SINGLE-CHIP 6-PORT 10/100MBPS ETHERNET.
Realtek
RTL8306E-CG - SINGLE-CHIP 6-PORT 10/100MBPS ETHERNET SWITCH CONTROLLER
RTL8306E-CG SINGLE-CHIP 6-PORT 10/100MBPS ETHERNET SWITCH CONTROLLER WITH DUAL MII/RMII INTERFACES DATASHEET (CONFIDENTIAL: Development Partners Only).