https://sunnymartinscomputers.com/product/cisco-sfp-10g-lr-compatible-sfp-optical-transceiver-supports-up-to-10km-link-lengths-over-lc-duplex-smf-fibre-at-a-wavelength-of-1310nm/
<table class="data-table product-data-table mt-2"> <tbody> <tr> <td> <h1 class="font18 font-weight-bold color333 mb-0">SFP-10G-LR</h1> Cisco SFP-10G-LR module is the single-mode 10G fiber optical transceiver, the Cisco 10G Base-LR Module supports a link length of 10 kilometers on standard single-mode fiber (SMF, G.652) and SFP-10G-LR SFP Plus optical transceiver from Solid-Optics offers up to 10Km link length on standard single-mode fiber. <strong>The Features</strong> <p align="left">   ☆ Industry’s smallest 10G form factor for greatest density per chassis</p> <p align="left">   ☆ Hot-swappable input/output device that plugs into an Ethernet SFP+ port of a Cisco switch</p> <p align="left">   ☆ Supports “pay-as-you-populate” model for investment protection and ease of technology migration</p> <p align="left">   ☆ Digital optical monitoring capability for strong diagnostic capabilities</p> <p align="left">   ☆ Optical interoperability with 10GBASE XENPAK, 10GBASE X2, and 10GBASE XFP interfaces on the same link</p> <p align="left">   ☆ Cisco quality identification (ID) feature enables a Cisco platform to identify whether the module is certified and tested by Cisco</p> </td> </tr> </tbody> </table>