The Cisco 10GBASE-SR X2 Transceiver Module supports a link length of 26m on standard FDDI grade MMF. Using 2000 MHz km MMF (OM3), up to 300m link lengths are possible. With 10GBase-SR technology, enjoy up to 10Gbps data transfer rate over optical fiber cable Optimize the network's performance with 10 Gigabit Ethernet connectivity With its thicker diameter to carry the light of multiple wavelengths, multi-mode fiber optic cable supports the high bandwidth to carry more information with greater fidelity Product Type: X2 Brand Name: Cisco Compatibility: Cisco Catalyst 6500 Series Switches Form Factor: Hot-swappable Manufacturer: Cisco Systems, Inc Product Name: 10GBASE-SR X2 Transceiver Module Manufacturer Part Number: X2-10GB-SR-RF Manufacturer Website Address: http://www.cisco.com Weight (Approximate): 300 g