Product Description
Cisco Fourth-Generation 64-Channel High-Density Packet Voice Digital Signal Processor Module (Factory Upgrade from 32-Channel) - Voice DSP module - remanufactured - for P/N: C1-Cisco 4331-DC/K9, ISR4331-DNA, ISR4331-PM20, ISR4331-SPM, ISR4331-SPM-8GOther Details
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