Keep 100 MbE infrastructure online with an SFP designed for long-reach fiber connectivity. The StarTech SFP100BZXST supports 100BASE-ZX operation at 100 Mbps, giving network teams a practical way to maintain legacy links without replacing stable switching hardware. Its 1550 nm optical design is suited to extended-distance deployments where copper is no longer practical and where consistent transport matters more than headline speed. MSA compatibility helps simplify integration across supported platforms, making this module a sensible fit for mixed-vendor environments and lifecycle extension projects. For procurement teams, this module fills a specific role: preserving service on existing access layers, remote closets, and point-to-point fiber runs where 100 MbE remains sufficient. That makes it a targeted investment rather than a broad replacement part. When the requirement is to keep a proven network segment operating with minimal disruption, this SFP delivers the right optical profile in a compact, standards-based package.