Cisco MEM-2900-512MB= enterprise networking (router/Catalyst switch/UCS families) Telecom System Card / Module

The Cisco MEM-2900-512MB= is a 512MB DRAM module, supplied as a single DIMM, built for the Cisco 2901, 2911 and 2921 Integrated Services Routers (ISR G2). It adds to the router’s main system memory, which Cisco IOS draws on for routing tables, packet buffering and the fuller-featured IOS images covering security, voice and unified communications that the base memory configuration on these routers often cannot run comfortably. It uses the memory architecture and DIMM footprint common to the smaller 2900 Series models, and is not interchangeable with the memory used on the larger 2911/2921’s bigger 3900 Series siblings. The 2901, 2911 and 2921 remain widely deployed as branch and small-office routers, and a memory upgrade of this kind is a low-cost way to extend the useful life of an existing router rather than replacing it. Tech-Star (UK-based, shipped worldwide) stocks Cisco components to support ongoing network maintenance.