Part Number Description
MEM2851-256U1024D 256 to 1024MB DDR DRAM factory upgrade for Cisco 2851
MEM2851-256U768D 256 to 768MB DDR DRAM factory upgrade for the Cisco 2851
MEM2851-256D-RF 256MB DIMM DDR DRAM for the Cisco 2851 REFURBISHED
MEM2851-512D 512MB DIMM DDR DRAM for the Cisco 2851
MEM2851-512D= 512MB DIMM DDR DRAM for the Cisco 2851