The Cisco C-SM-16P4M2X service modules are layer-2 switch modules that provide enhanced security, reliability, and performance. The Cisco C-SM-16P4M2X modules provide Small Form-Factor Pluggable (SFP) /Small Form-Factor Pluggable Plus (SFP+), 1 Gigabit, 2.5 mGiG, and 10G connectivity to the Cisco Catalyst 8300 Series Edge platforms. They also, provide 10G-capable internal uplink to central forwarding data plane on modular ISR platforms.
The Cisco C-SM-16P4M2X service modules are capable of supporting standard Power over Ethernet (PoE), Power over Ethernet Plus (PoE+), Cisco Enhanced Power over Ethernet (EPoE), and Cisco Universal Power over Ethernet (UPoE) on all copper ports. A maximum of 60 watts of power for each copper port is supported by leveraging both signal and spare pairs.