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Amazon.com: 10GBase-LR SFP+ Singlemode Transceiver, 10G SFP 1310nm 10km&20km DDM Duplex LC SM Module, Compatible with Arista SFP-10G-LR : Electronics
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Cisco SFP+ 10GBase-LR, 10Km', Singlemode Module (S-Class, Enterprise Version), Part number: SFP-10G-LR-S | Amboya - supplier of VoIP PBX / PABX, Point to Multipoint, PtP, RADWIN, Cyber Security, Cisco, PV Solar optimization,
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