... Card Slots, 2 PVDM slots, 2 AIMs, and Cisco IOS IP Base SoftwareCISCO2811Integrated services router with AC power, 2FE, 1 NME, 4 HWICs ... , 4 HWICs, 2 PVDM slots, 2 AIMs, and Cisco IOS IP Base SoftwareCISCO2821Integrated services router with AC power, 2GE, 1 NME-X, 1 ... , 1 EVM, 4 HWICs, 3 PVDM slots, 2 AIMs, and Cisco IOS IP Base Software Cisco 2801 Cisco Router Cisco 2800 Router