The XM-4000 Module Series includes Gigabit and 2.5 Gigabit Ethernet modules and fan modules for MRX-G4000/Q4000 Series modular managed Ethernet switches. Each XM-4000 Series Ethernet module supports up to 16 ports with a variety of interface types, including TX and SFP media types. Additionally, the XM-4000-FAN fan modules provide active heat dissipation and high ventilation efficiency for cabinet environments.