The JBX88361 ST/ST Duplex Singlemode Fiber Patch Cable represents the gold standard in high-performance fiber connectivity solutions. This 50-meter cable is meticulously engineered for telecommunications, data center, and enterprise network environments where reliability and signal integrity are paramount. **Technical Excellence:** Constructed with 9/125 singlemode fiber featuring G.657.A1 glass fiber composition, this cable delivers superior attenuation performance: 0.25 dB/km at 1310nm or 0.35 dB/km at 1550nm. The impressive insertion loss specification of ≤0.35dB (0.15dB typical) and return loss of ≥20dB ensure minimal signal degradation over distance. Performance has been independently verified against ANSI/TIA/EIA-455-171-A-2001 standards. **Professional-Grade Construction:** The duplex configuration with ST/UPC connectors uses Type A to B crossover polarity, the industry standard for duplex patch cords. The 1.8mm outside diameter allows flexible routing without compromising signal integrity. OFNR riser-rated jacketing provides essential fire safety compliance for in-building installations, protecting both equipment and personnel. **Compliance & Procurement:** Fully TAA compliant and RoHS/ELV certified per EU directive 2002/95/EC, this cable meets rigorous government and enterprise procurement standards. Manufactured across multiple certified facilities in Taiwan, the US, and China, ensuring consistent quality and availability. **Practical Advantages:** With a compact 5.0" x 0.2" x 5.0" footprint and 10x10x10 case packaging, integration into existing infrastructure is seamless. The cable ships from strategically located US warehouses (California, Texas, and South Carolina) with complimentary standard shipping on orders exceeding $99. A comprehensive 90-day limited warranty provides peace of mind. **Ideal Applications:** Perfect for long-distance fiber signal transmission in data centers, telecommunications facilities, broadcast studios, and enterprise networks. The singlemode design supports single-wavelength transmission over extended distances without mode dispersion. **Custom Solutions:** Available in custom lengths to match specific installation requirements, offering flexibility beyond standard 50m configuration.