Network Switch:
Cisco C3KX-NM-10G Module
Cisco C9300-NM-2Y Card Module
Cisco C9300-NM-2Y Card Module supports optional network modules for uplink ports. The default network switch configuration does not include the network module. When you purchase the switch, you can choose from the five network modules available for it. This network card module supported by cisco 9300 series switches. this product designed by cisco company and you can buy it in network equipment market.
Cisco C9300-NM-4M Card Module
Cisco PVDM3-32 Module
The Cisco PVDM3-32 is a high-density voice and video DSP module that provides digital signal processor (DSP) resources for voice and video applications on Cisco Integrated Services Routers (ISRs). The full name of PVDM3-32 is PVDM = Packet Voice Digital Signal Module, 3 = Third generation and 32 = 32 channels of DSP resources. Here are some key points about the Cisco PVDM3-32 Module:
Cisco VIC2-4FXO Voice Interface Card
The Cisco VIC2-4FXO is a Voice Interface Card (VIC) designed for Cisco Integrated Services Routers (ISRs). Every parts of Cisco VIC2-4FXO mean; VIC = Voice Interface Card, FXO = Foreign Exchange Office (a type of analog voice port) and 4FXO = 4 FXO ports on the card. It allows a router to connect to the Public Switched Telephone Network (PSTN) using analog phone lines (like traditional copper telephone lines from your phone company)