HPE JG661A

40G QSFP+ LC LR4 SM Transceiver Module

The HPE JG661A 40G QSFP+ LC LR4 SM Transceiver Module is a high-performance optical module designed for reliable long-distance 40 Gigabit Ethernet links over single-mode fiber. Operating at a wavelength of 1310 nm,this LR4-grade Transceiver supports distances up to 10 km, making it ideal for data centers, enterprise backbones, and campus networks requiring robust high-bandwidth connectivity. It features a hot-swappable QSFP+ form factor with a duplex LC connector, enabling seamless installation and replacement without network disruption. Compatible with HPE X140, 5900AF, and other A-series switches, the JG661A ensures interoperability and optimized performance in HPE environments, offering a dependable solution for expanding optical networking infrastructure.

Features

Leveraging the IEEE 802.3ba 40GBASE-LR4 standard, the HPE JG661A Transceiver encapsulates four 10 Gbps channels using coarse wavelength division multiplexing (CWDM) across wavelengths—typically around 1310 nm—to transmit a consolidated 40 Gbps optical signal over single-mode fiber. Its digital optical monitoring (DOM) capability provides real-time diagnostics of temperature, optical power levels, and voltage—facilitating proactive maintenance and minimizing downtime.The module’s plug-and-play QSFP+ design simplifies infrastructure upgrades and ensures compatibility across HPE networking hardware such as the FlexFabric 5900AF series. The LC duplex interface further enhances flexibility, as it integrates easily into standard fiber infrastructure. Engineered to sustain long-reach transmissions up to 10 km, the JG661A supports critical scenarios like inter-building links, backbone expansion, or distributed data center connectivity. As a reliable and cost-effective optical module, it’s an indispensable component for evolving high-speed network designs.

Advanced Options

The HPE JG661A Transceiver is built for both performance and reliability in demanding networking environments. The QSFP+ housing enables hot-swappable operation, minimizing maintenance windows and supporting uninterrupted connectivity. With digital diagnostics monitoring, network administrators can access live performance metrics—critical for early detection of optical degradation or environmental issues.