512MB DRAM for Cisco 1941/1941W ISR (only as spare)
Cisco MEM-1900-512MB=, 0.5 GB, 1 x 0.5 GB, DDR3, 240-pin DIMM
Cisco MEM-1900-512MB=. Component for: PC/Server, Internal memory: 0.5 GB, Memory layout (modules x size): 1 x 0.5 GB, Internal memory type: DDR3, Memory form factor: 240-pin DIMM, ECC