Cisco MEM2800-512CF enterprise networking (router/Catalyst switch/UCS families) Telecom System Card / Module

The Cisco MEM2800-512CF is a 512MB CompactFlash card built for the Cisco 2800 Series Integrated Services Router, the first-generation ISR platform covering the 2801, 2811, 2821 and 2851 models. It provides the external flash storage that holds the router’s Cisco IOS image and configuration files, and a larger card of this size supports the bigger IOS feature-set images (security, voice and unified communications bundles) that the base flash shipped with these routers often could not hold. It is a standard CompactFlash form factor but programmed and qualified for Cisco IOS use on this specific router family, distinct from the flash used on the earlier 1700/2600 Series or the later 2900 Series ISR G2. The 2800 Series has been end-of-sale for some years but a meaningful number remain in service at small branch and lab sites, where a flash upgrade like this is a low-cost way to fit a fuller-featured IOS image onto an existing router. Tech-Star (UK-based, shipped worldwide) stocks Cisco components to support ongoing network maintenance.