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Amazon.com: QSFPTEK 1G Gigabit SFP Module, 1000Base-LX/LH LC 1310nm, 20km Mini-GBIC Single Mode SFP Transceiver for Cisco GLC-LH-SM-20, Meraki, Ubiquiti Unifi, Mikrotik, Fortinet, : Electronics
StarTech.com Cisco Meraki MA-SFP-1GB-SX Comp. SFP Module - 1000BASE-SX - 1GbE MMF Transceiver 550m - MASFP1GBSXST - Transceiver Modules - CDW.com
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