Juniper QSFP+ 40GE IR4 Transceiver, 40 Gbps | QSFP Module, Enterprise

Maintain 40 GbE connectivity across single-mode fiber with the Juniper QSFP+ 40GE IR4 transceiver. Built for infrastructure teams that need dependable optical transport in dense switching environments, this module supports high-capacity uplinks without adding rack complexity. Its QSFP+ form factor keeps port density high, while the IR4 optical design is suited to enterprise aggregation, data center interconnect, and switch-to-switch links where link quality matters. For teams standardizing on Juniper optics, the value is in consistency: a purpose-built transceiver that aligns with the platform’s electrical and optical requirements, helping reduce compatibility risk and simplify spares planning. The LC duplex connector and 1310 nm wavelength are well suited to single-mode deployments where longer reach and cleaner signal performance are priorities. Choose this module when the network needs more than generic optics. It is designed for production environments where uptime, predictable behavior, and vendor-aligned support matter more than lowest-cost alternatives. In high-density fabrics, that discipline pays off in fewer surprises and cleaner operations.