The SFP 10G LR (Small Form-factor Pluggable 10 Gigabit Long Range) optical transceiver is designed for long-range data transmission over single-mode fiber (SMF) optics. The maximum distance supported by SFP 10G LR can vary based on factors such as the quality of the optical components, the type and condition of the fiber optic cable, and environmental conditions. However, a common specification for the maximum distance of SFP 10G LR is approximately 10 kilometers (km) or 6.2 miles.

It's important to note that the actual achievable distance may depend on specific implementation details and the characteristics of the optical infrastructure. When deploying SFP 10G LR transceivers, consider factors such as signal attenuation, dispersion, and the quality of the fiber optic link.

If you require longer-distance connections, other types of optical transceivers with different specifications, such as ER (Extended Range) or ZR (Zero Dispersion Shifted Reach), may be suitable. Always refer to the specifications provided by the transceiver and cable manufacturers for accurate information on the supported distances based on your specific setup.