Cisco shapes the future by creating unprecedented value and opportunity for its customers, employees, investors, and ecosystem partners. As a leading manufacturer of network products, Cisco backs them with all the necessary hardware and software. Cisco provides common functionality, scalability, and security for its products. The company produces powerful memory upgrades to increase the productivity of your systems.Cisco offers the 16 MB memory upgrade module designed to replace 4 MB main memory (total 16 MB).