The MEM-XCEF720-1GB CISCO 6500 CATALYST MEMORY for DFC3A is a third-party memory module designed specifically for Cisco routers. This DDR1 SDRAM memory has a capacity of 1GB per module, making it compatible with the Cisco 6500 Catalyst series. With a form factor of SO-DIMM, this module is easy to install and offers reliable processing power for your networking needs. Upgrade your router with this high-quality memory module to enhance performance and functionality in your enterprise network.