NM modul vybavený 1 slotem pro GBIC modul (WS-G5483 (1000BASE-T), WS-G5484 (1000BASE-SX), WS-G5486 (1000BASE-LX/LH), WS-G5487 (1000BASE-ZX) a CWDM GBIC moduly). Podpora Ethernet a VLAN (802.1Q, ISL, 802.3x Flow Control), mgmt (SNMP a RMON), QoS (WRED, 802.1p, CAR, ACL a Extended ACL), Jumbo rámce, GMP a IGMP pro multicast, HSRP. Modul podporuje Cisco 2691, 3660, 3725 a 3745.