Move 25 GbE traffic across longer multimode spans with the Accortec JL485A-ACC SFP28 transceiver. Built for LC duplex fiber and up to 400 m reach, it gives infrastructure teams more distance headroom than standard short-reach optics while preserving the compact SFP28 footprint. This module is a practical fit for data center interconnects, aggregation links, and extended rack-to-rack runs where multimode fiber is already in place. The eSR profile is designed for environments that need more reach without stepping up to single-mode optics or redesigning the fiber plant. For procurement teams, the value is straightforward: keep 25 GbE performance, maintain compatibility with dense SFP28 switch ports, and extend the usable distance of multimode infrastructure. That can reduce the need for additional switching layers or fiber rework in facilities where cable paths are longer than expected. Compared with 100 m short-reach optics, this 400 m model is the better fit when link planning needs more margin. It is especially useful in enterprise campuses, large data halls, and distributed rack layouts where a little extra reach can simplify deployment and preserve design flexibility.