The JBX91193 SC/ST singlemode fiber patch cable represents professional-grade connectivity for mission-critical network infrastructure. Engineered to exacting specifications, this 12-meter duplex cable combines proven reliability with advanced performance characteristics that exceed industry standards. **Technical Excellence:** Built with 9/125 micron singlemode fiber core and G.657.A1 glass construction, this cable delivers superior attenuation performance across standard telecommunications wavelengths: 0.25 dB/km at 1310 nm and 0.35 dB/km at 1550 nm. The measured insertion loss of ≤0.35dB (0.15dB typical) ensures minimal signal degradation, while return loss of ≥20dB maintains signal integrity in demanding applications. Every cable is attenuation-tested in accordance with ANSI/TIA/EIA-455-171-A-2001 standards. **Regulatory Compliance & Safety:** TAA compliance ensures eligibility for government and federal procurement programs. RoHS/ELV certification confirms environmental responsibility and regulatory adherence per EU directive 2002/95/EC. The OFNR-rated riser jacket provides appropriate flame rating for building code compliance in non-plenum environments. **Practical Design Features:** The Type A to B crossover polarity configuration (most common for duplex patch cords) simplifies installation and reduces compatibility issues. The compact 1.8mm outside diameter allows for efficient cable management and routing through tight spaces. Available in distinctive green for easy identification and inventory management. **Custom Solutions Available:** While this product offers 12-meter standard length, custom lengths are available to meet specific deployment requirements. **Quality Assurance:** Backed by a 90-day limited warranty and manufactured with quality controls across facilities in Taiwan, the United States, and China, this cable delivers consistent performance. Free standard shipping on orders exceeding $99, with fulfillment from multiple US locations (Danville CA, Fort Worth TX, or Beaufort SC) ensures rapid delivery. **Ideal Applications:** Perfect for data center connectivity, telecommunications networks, CATV systems, and any application requiring reliable singlemode fiber signal transmission. The duplex configuration supports simultaneous bidirectional communication, making it essential for modern network infrastructure.