Axiom Memory AXG97014 40GBASE-ESR4 QSFP+ Transceiver

Connect Juniper QFX switch ports over parallel multimode fiber at 40 GbE with the Axiom Memory AXG97014 QSFP+ transceiver. It implements the 40GBASE-ESR4 optical interface, carrying traffic across four parallel 10 GbE lanes rather than converting the port to individual breakout connections. The QSFP+ form factor installs directly into a compatible 40 GbE cage, making it appropriate for switch-to-switch links and high-bandwidth aggregation paths. 40GBASE-ESR4 uses 850 nm multimode optics and an MPO/MTP fiber interface. Its extended-reach optical budget supports links up to 300 m on OM3 multimode fiber or 400 m on OM4 multimode fiber. Those distances suit structured cabling runs between network rows, distribution switches, and equipment rooms where standard short-reach 40 GbE optics may not cover the required path. This specific optic is encoded for Juniper QFX compatibility and carries a TAA-compliant designation. It addresses deployments that need a 40 GbE parallel-optics connection in a Juniper QFX environment while retaining the QSFP+ interface used by the switch. Match the installed port to QSFP+ 40 GbE operation, select MPO/MTP multimode cabling rated for the required optical path, and validate fiber polarity across all four transmit and receive lanes before commissioning the link.