Cisco Catalyst 3750-X Series Switches are stackable access switches for enterprise LANs. They are simple to deploy and support the most demanding applications. Support the most demanding applications with Cisco Catalyst 3750-X Series Switches. These stackable access switches are energy-efficient and easy to deploy and operate. They bring exceptional security, availability, and quality of service (QoS) to your campus or branch network, to boost productivity and enhance efficiency.