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Cisco 256-Channel High-Density Voice DSP Module, or Spare - For Voice (PVDM4-256-RF)
Marketing Information: The PVDM4 modules are supported on the Cisco 4451-X platform. You can plug them directly into the single slot on the router motherboard or onto the network interface module...
$11,772.43
$11,772.43
$7,842.68