512MB to 2GB DRAM Upgrade (2GB DIMM) for Cisco 2951 ISR
Cisco MEM-2951-512U2GB, 2 GB, 1 x 2 GB, DRAM
Cisco MEM-2951-512U2GB. Component for: PC/server, Internal memory: 2 GB, Memory layout (modules x size): 1 x 2 GB, Internal memory type: DRAM