Cisco sfp-10g-sr-s module (s-class)
the cisco 10gbase-sr module supports a link length of 26 meters on standard fiber distributed data interface (fddi)-grade multimode fiber (mmf). Using 2000 mhz*km mmf (om3), up to 300-meter link lengths are possible. Using 4700 mhz*km mmf (om4), up to 400 meter link lengths are possible. Sfp-10g-sr-s does not support fcoe.