The Linksys Instant EtherFast (EF3124) 24-Ports External Switch is a rack-mountable Ethernet switch designed for fast Ethernet connections (100-Mbit/s). With 24 LAN ports, this unmanaged switch by Linksys offers reliable network connectivity for wired-Ethernet devices using RJ-45 interfaces. This model from the Linksys product line provides a high maximum LAN data rate of 100 Mbps, making it ideal for small to medium-sized businesses or home networking setups.