The Catalyst 4900M switch is a 2 RU horizontal high-performance dedicated Ethernet switch. The chassis has 8 fixed 1-GB or 10-GB ports and two half-card Ethernet module slots that can accommodate a several different styles of half-card Ethernet modules. The switch has one removable variable-speed fan tray and supports redundant power supplies.
The Catalyst 4900M switch is a 2 RU horizontal high-performance dedicated Ethernet switch. The chassis has 8 fixed 1-GB or 10-GB ports and two half-card Ethernet module slots that can accommodate a several different styles of half-card Ethernet modules. The switch has one removable variable-speed fan tray and supports redundant power supplies.