Keep short-reach fiber links consistent with this AddOn compatible 1000BASE-SX SFP transceiver. Designed for IBM 45W2815 compatibility, it supports 1 GbE operation over multimode fiber using 850 nm optics and LC duplex connectivity. This module is a strong choice when you need dependable replacement optics without changing the network design. 1000BASE-SX remains a proven fit for switch uplinks, server connections, and storage-adjacent paths inside the data center. The multimode design keeps deployment simple in environments already built around short-distance fiber. For procurement teams, the value is straightforward: compatible optics that align with existing infrastructure, support TAA-sensitive sourcing, and avoid unnecessary spend on higher-speed modules that do not improve the link. For operations teams, the result is a clean replacement path that keeps spares standardized and maintenance predictable.