The JBX91201 SC/ST Duplex Singlemode Fiber Patch Cable represents a professional-grade solution for demanding optical network infrastructure. This 50-meter cable is specifically engineered for organizations requiring reliable, high-performance fiber optic connectivity with minimal signal degradation. **Technical Excellence:** Designed with a 9/125 singlemode core and G.657.A1 glass fiber, this cable delivers industry-leading optical performance. The insertion loss specification of ≤0.35dB (0.15dB typical) ensures minimal signal attenuation over the full 50-meter length, critical for maintaining data integrity in long-distance applications. The return loss rating of ≥20dB reflects superior connector quality and precise manufacturing standards. **Performance Standards:** Attenuation rates of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm meet or exceed telecommunications industry standards. Testing compliance with ANSI/TIA/EIA-455-171-A-2001 guarantees consistent performance across all installations. **Compliance & Safety:** TAA compliance makes this cable suitable for government and regulated sector deployments. RoHS/ELV certification ensures environmental responsibility, while OFNR riser-rated jacketing provides fire-safety performance for building installations. The robust 1.8mm outside diameter provides durability without excessive bulk. **Practical Applications:** Ideal for data center interconnects, telecommunications networks, high-frequency trading environments, and any installation requiring reliable long-distance singlemode connectivity. The Type A to B crossover configuration is the industry standard for duplex patch cord installations. **Flexibility & Support:** Available in custom lengths to accommodate specific deployment requirements. Backed by a 90-day limited warranty and eligible for free standard shipping on orders exceeding $99. Ships from multiple US distribution centers for rapid delivery. This TAA-compliant cable represents the professional's choice for mission-critical fiber optic installations where performance, reliability, and compliance are non-negotiable.