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Amazon.com: StarTech.com Cisco GLC-LH-SMD Compatible SFP Module - 1000BASE-LH - 1GbE Single Mode Fiber SMF Optic Transceiver - 1GE Gigabit Ethernet SFP - LC 20km - 1310nm - DDM Cisco Firepower (SFPG1320C) :
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SFP-9540-55 - 155M to 4.25G multi-rate single-mode SFP transceiver, OC3 to OC48, Fibre Channel 4G, 1550nm, max range 40Km, dual LC connector
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