The CISCO1812/K9 is security router with dual 10/100 WAN ports, 8-port 10/100BASE-T switch, ISDN S/T backup and Cisco IOS Advanced IP Services. This router help enable a network infrastructure for SMBs and enterprise small branch offices, providing access to the Internet, corporate headquarters, or other remote offices, while securing and protecting critical data with integrated Cisco IOS Software security features and capabilities. Memory Standard Memory: 128MB Maximum Memory: 384MB Memory Technology: DRAM Flash Memory: 32 MB OS: Cisco IOS Advanced IP Service