Cisco's Catalyst 2900 Series XL is a full line of 10/100 autosensing Fast Ethernet switches from the leader in networking that combine outstanding performance, ease-of-use and integrated Cisco IOS software. The Catalyst 2900 Series XL includes five models with different port densities, configuration options, and pricing to meet a broad range of network design requirements. Available in Standard and Enterprise Editions, the software embedded in Catalyst 2900 Series XL switches is upgradeable so your investment is protected if your network grows or changes.