StarTech Cisco GLC-LH-SM Compatible SFP Module - 1000BASE-LX/LH - - 1GE Gigabit Ethernet SFP - LC 621 mi - 1310nm - Cisco IE3400 IE3300 IE3200~Cisco GLC-LH-SM Compatible SFP Module - 1000BASE-LX/LH - - 1GE Gigabit Ethernet SFP - LC 10km - 1310n.
eBay