Keep 100 MbE infrastructure connected across longer fiber runs with the StarTech SFP100BLXST. This MSA-compliant, uncoded SFP is designed for 100BASE-LX operation over single-mode fiber at 1310 nm, giving network teams a straightforward way to maintain Fast Ethernet links in environments where copper distance or EMI constraints make fiber the better choice. Its LC connector and compact SFP form factor make it easy to deploy in supported switches, media converters, and other SFP-capable equipment. For organizations maintaining mixed-generation networks, this module helps preserve service on legacy 100 MbE segments without forcing a broader hardware refresh. That matters when the requirement is not more speed, but dependable connectivity for devices and links that still run at 100 MbE. Choose this module when you need a precise fit for access-layer extensions, remote equipment rooms, or industrial endpoints that depend on stable, standards-based fiber transport. It is a focused component, not a general-purpose transceiver, and that specificity is what makes it valuable in production networks.