Move 10/100 Ethernet beyond copper limits and keep remote devices on the same network fabric. The StarTech ET90110ST2 converts standard Ethernet to multimode fiber for runs up to 2 km, giving you a practical way to bridge buildings, connect isolated closets, or replace noisy copper segments with a cleaner optical path. This converter is designed for straightforward deployment in environments where distance, interference, or cable routing make copper impractical. ST fiber connectivity supports established multimode infrastructure, while the compact form factor fits cleanly into network edge installations. For teams managing mixed legacy equipment, it provides a cost-controlled path to extend service without replacing the entire access layer. TAA compliance adds procurement flexibility for public sector and regulated buyers. When the requirement is to keep critical Ethernet links stable over longer spans, this model delivers a focused, purpose-built conversion point rather than a general-purpose network device.