DRAM Upgrade 256MB to-512MB
Cisco Systems Part# MEM8XX-256U512D
RAM Modules – RAM Module - DDR2-533/PC2-4200 - DRAM - 256 MB Memory Size - DIMM - 533 MHz Memory Speed - Router - Non-ECC - Cisco 880 Series Integrated Services Routers. - 1 x 256MB Modules - 90 Day Limited Warranty