Cisco EF4124 EtherFast 4124 24-Port 10/100 Ethernet Switch Data Transfer Rate - 10/100 Mbps Ports Qty - 24 Ports Manufacturer Warranty - Lifetime warranty Compliant Standards - IEEE 802.3, IEEE 802.3u and IEEE 802.3x Compliant Standards - IEEE 802.3, IEEE 802.3u and IEEE 802.3x