As of my last knowledge update in January 2022, there isn't a specific designation for "SFP 10G LR S" in the Cisco product lineup. However, I can provide information about the commonly known Cisco SFP 10G LR.

Cisco SFP 10G LR (Long Range) is a type of transceiver module designed for 10 Gigabit Ethernet applications. It operates over a single-mode fiber (SMF) optic cable and has a reach of up to 10 kilometers (about 6.2 miles). This module uses a 1310nm wavelength.

If "SFP 10G LR S" is a specific product released after my last update or a designation used by certain vendors or regions, I recommend checking the latest Cisco documentation or contacting Cisco directly for the most accurate and up-to-date information. Cisco's product naming conventions may evolve over time, and new releases may have occurred since my last update.