The JBX93169 40-meter SC/SC duplex singlemode fiber patch cable represents professional-grade networking infrastructure designed for critical telecommunications, data center, and enterprise network applications. This high-performance cable combines precision engineering with proven reliability. **Technical Excellence:** Constructed with 9/125 singlemode fiber core and G.657.A1 glass specifications, this cable achieves exceptional optical performance. Insertion loss testing confirms ≤0.35dB at operational wavelengths (0.15dB typical), with return loss exceeding 20dB. Attenuation rates of 0.25 dB/km at 1310nm or 0.35 dB/km at 1550nm meet stringent industry standards. All testing follows ANSI/TIA/EIA-455-171-A-2001 protocols, ensuring consistent, measurable performance. **Compliance & Safety:** TAA compliant for government and institutional procurement. RoHS/ELV directive 2002/95/EC certified for environmental responsibility. OFNR Riser-rated jacket accommodates building codes and safety requirements for vertical installations and air handling spaces. **Installation Features:** The duplex configuration with Type A to B crossover polarity accommodates standard network equipment connections. SC/UPC connectors provide reliable, low-loss connections. Compact 1.8mm outer diameter enables efficient cable management in crowded rack environments. **Flexibility & Support:** While this 40-meter version covers substantial distances, custom lengths are available to match your specific installation requirements. Ships from multiple U.S. locations for fast delivery, with free standard shipping on orders exceeding $99. Backed by a 90-day limited warranty. **Applications:** Ideal for campus network backbones, data center interconnects, telecommunications cabinets, and long-distance equipment connections within buildings or across short outdoor routes protected from direct sunlight.