2811 Voice Bundle,PVDM2-16,SP Serv,64F/256D NEW SEALED ORIGINAL ... (2 Total) PVDMExpansion Slots: (1 Total) NMEModules: 1 x PVDM2-16 Packet Voice/Fax DSP Module Cisco CISCO2811-V/K9 ... Memory Standard Memory: 256MBMaximum Memory: 760MBMemory Technology: DRAMFlash Memory: 64 MB Cisco CISCO2811-V/K9 Software Operating System: Cisco 2800 ... or 60 Hz CISCO2811-V/K9 2811 Voice Bundle,PVDM2-16,SP Serv,64F/256D