The JBX88216 ST/ST Duplex Singlemode Fiber Patch Cable represents the gold standard in fiber optic connectivity solutions. This 75-meter cable is meticulously engineered for professionals who demand uncompromising performance in mission-critical network environments. **Key Features & Specifications:** Built with genuine G.657.A1 glass fiber technology, the 9/125 singlemode core ensures optimal signal transmission over extended distances. The duplex configuration accommodates bidirectional communication, making it perfect for full-duplex network architectures. With an outside diameter of just 1.8mm, this cable easily routes through conduits and cable trays without excessive bend radius concerns. **Performance Metrics:** The cable achieves exceptional optical performance: typical insertion loss of 0.15dB (maximum 0.35dB), return loss ≥20dB, and wavelength-optimized attenuation of 0.25dB/km at 1310nm or 0.35dB/km at 1550nm. These specifications meet rigorous ANSI/TIA/EIA-455-171-A standards, ensuring compatibility with telecommunications infrastructure. **Compliance & Safety:** TAA compliance makes this cable suitable for government and regulated installations. The riser-rated (OFNR) jacketing meets fire safety requirements for plenum environments. RoHS and EU directive 2002/95/EC compliance ensure environmental responsibility without sacrificing performance. **Practical Applications:** Ideal for long-distance fiber runs in data centers, telecommunications facilities, campus networks, and ISP backbone installations. The yellow jacket enhances visibility during installation and troubleshooting. The Type A to B crossover polarity configuration is industry standard for duplex patch cord applications. **Value Proposition:** With free standard shipping on orders exceeding $99 and a 90-day limited warranty, this cable offers exceptional value. Custom lengths available upon request for specialized requirements. Ships from multiple US locations (Danville CA, Fort Worth TX, and Beaufort SC) for expedited delivery.