Cisco 2811 2821 2851 512MB DRAM Upgrade

Cisco 2811 2821 2851 256MB DRAM Upgrade

DRAM memory upgrade for Cisco 2811 2821 2851 routers

These devices have two dram slots.  Most 2811 have one 256mb dram stick installed.  Adding one of these will bring you to 768mb dram.