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QSFP28-100G-LR4, 100GBASE-LR4 QSFP28 10km DOM Duplex LC SMF Optical Transceiver ModuleSKU: QSFP28-100G-LR4Mfr Part #: QSFP28-100G-LR4As low as $432.84 - $477.61
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40G QSFP+ER4,40G,1270nm~1330nm 40km DOC LC SMF Optical Transceiver ModuleSKU: QSFP+ -40G-ER4Mfr Part #: QSFP+ -40G-ER4As low as $400.37 - $441.79