The Cisco SFP-10G-SR module is the multimode 10G fiber optical transceiver, and it supports up to 400m link length when uses 4700Mhz KM MMF (OM3).
Figure 1. The appearance of SFP-10G-SR.
☆ Industry’s smallest 10G form factor for greatest density per chassis
☆ Hot-swappable input/output device that plugs into an Ethernet SFP+ port of a Cisco switch
☆ Supports “pay-as-you-populate” model for investment protection and ease of technology migration
☆ Digital optical monitoring capability for strong diagnostic capabilities
☆ Optical interoperability with 10GBASE XENPAK, 10GBASE X2, and 10GBASE XFP interfaces on the same link
☆ Cisco quality identification (ID) feature enables a Cisco platform to identify whether the module is certified and tested by Cisco