The Extreme Networks 10GBaseSR Module supports standard multimode fiber.
.Extreme Networks 10G-SFP-SR-8 10GBase-SR SFPP Plus MMF LC Transceiver - 8-Pack The Extreme Networks 10G-SFP-SR-8 10GBase SFP+ modules offer customers a wide variety of 10 Gigabit Ethernet connectivity options for data center, enterprise wiring closet, and service provider transport applications.