The Cisco 10/25GBASE-CSR Module supports a link length of up to 300/400m over OM3/4 at 10G, and up to 300/400m over OM3/4 at 25G

This module requires RS-FEC on the host port for full reach operation at 25G. Using BASE-R FEC the module can support 70/100m over OM3/4 and with-out FEC it can support 30/50m over OM3/4 at 25G. For 10G operation FEC is not required.

• Optical fiber cable compatible - Spans afar and provides speedy data transmission rates between servers and network components
• 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
• Uses 25 Gigabit Ethernet technology to fulfill the high bandwidth requirement