... .25G MM (multi mode) 850nm 550m SC connector Optical module GBIC Gigabit Ethernet Cisco,hp,3com,alcatel compatible Highlight1.25G ... MM (multi mode) 850nm 550m SC connectorOptical module GBICGigabit EthernetCompatible Cisco, HP, 3com, alcatel, Nortel, Extreme... Model ... a little longer.Delivery methods: Big volume could be by sea or by air. Small volume could be by express/ ...