Keep high-speed Aruba connectivity intact across long fiber runs with this 25GBASE-ER SFP28 transceiver from Axiom. Built for 25 GbE environments, it is designed for single-mode deployments that need extended reach without moving to a more expensive transport layer. The ER optic class is a practical choice when your network spans buildings, campus edges, or remote equipment rooms. With LC duplex connectivity and support for up to 40 km, it gives infrastructure teams the distance headroom needed for resilient uplinks, storage paths, and aggregation links. That makes it a better fit than short-reach optics when the cable plant is already in place and the cost of redesign is higher than the cost of the module. For teams standardizing on Aruba hardware, this transceiver helps preserve port density and simplify spares planning. It is a focused component: no excess features, just the reach and signaling required for demanding 25 GbE links.