Keep high-speed uplinks stable across longer fiber runs with the Axiom JG661A-AX 40GBASE-LR4 QSFP+ transceiver. Designed for HP compatibility and MSA-compliant operation, it supports 40 Gigabit Ethernet over single-mode fiber using an LC interface. That makes it a practical fit for data center interconnects, aggregation layers, and optical network links where reach and signal integrity matter more than low-cost shortcuts. This module is built for teams that need predictable optics in production environments. The LR4 design is suited to single-mode deployments, helping preserve link quality over longer distances than short-reach multimode options. For infrastructure teams standardizing on HP hardware, the Axiom-compatible form factor provides a direct replacement path without changing the network design. A lifetime warranty adds another layer of assurance for assets expected to stay in service. If your environment depends on consistent 40 GbE performance for storage, server, or backbone connectivity, this transceiver delivers the optical characteristics and vendor alignment required to keep critical traffic moving.