The Cisco ESW 500 series is a group of managed Ethernet switches that provide wire-speed Fast Ethernet and Gigabit Ethernet connectivity, integrated security, quality of service (QoS), and Power over Ethernet (PoE) to support all of your business network needs. With the Cisco ESW 500 series, you can take advantage of a proven network solution and a broad portfolio of high-performance, easy-to-manage switches that are designed and priced for small businesses.The Cisco ESW 500 series switches provide security, management, and other capabilities far beyond what unmanaged or "smart" switches can provide, without requiring you to configure features you don't need.