StarTech MASFP1GBLX10 Cisco MA-SFP-1GB-LX10 - Cisco Gigabit SFP - Cisco Compatible SFP - Cisco 1000Base-LX SFP Module - Single-Mode SFP
1GE GIGABIT ETHERNET SFP 1310NM - SINGLE MODE (SMF) TRANSCEIVER - 10KM (6.2MI)