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    Cisco QSFP-40G-ER4 QSFP-ER4 Optical Transcevier

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    ER4
    Fiber
    1310nm
    40G
    SMF

    LC
    40km
    0 to 70°C (32 to 158°F)
    QSFP+
    ER4
    CMUIAKVCAA