New Cisco X2-10GB-SR 10 Gbe 850nm MM 300m DOM Transceiver Module 10-2205-06. Device Type: X2 transceiver module. The Cisco 10GBASE-SR Module supports a link length of 26m on standard FDDI grade MMF. Using 2000 MHz km MMF (OM3), up to 300m link lengths are possible.
eBay