The JBX88301 50m ST/ST Duplex Singlemode Fiber Patch Cable represents the gold standard in fiber optic connectivity for enterprise and telecommunications infrastructure. Built with precision-engineered 9/125 micron singlemode fiber, this cable is designed to meet the most stringent performance requirements in modern networking environments. **Superior Optical Performance** Tested in accordance with ANSI/TIA/EIA-455-171-A standards, this patch cable achieves exceptional optical characteristics. With typical insertion loss of just 0.15dB and maximum 0.35dB, combined with return loss exceeding 20dB, the cable ensures minimal signal degradation across both 1310nm and 1550nm wavelengths. The G.657.A1 glass fiber specification provides low attenuation at 0.25dB/km (1310nm) and 0.35dB/km (1550nm), making it ideal for long-distance signal transmission. **Robust Construction** The cable features durable plastic accessories and riser-rated OFNR jacketing with a compact 1.8mm outside diameter, enabling flexible routing in crowded cable trays and tight spaces. The green jacket provides excellent visibility during installations and maintenance, reducing the risk of accidental disruption. **Compliance & Reliability** Fully TAA compliant and meeting RoHS/ELV directives (EU 2002/95/EC), this cable satisfies government procurement requirements. The Type A to B crossover duplex configuration is the industry standard, ensuring compatibility with virtually all ST-based network equipment. **Practical Applications** Ideal for data centers, telecommunications facilities, universities, hospitals, and enterprise networks requiring high-speed fiber connectivity. The 50-meter length supports extended distances between equipment without additional splicing. **Flexible Solutions** Custom lengths are available to meet specific installation requirements. Multiple U.S. fulfillment centers (California, Texas, and South Carolina) ensure rapid delivery. With free standard shipping on orders over $99 and a 90-day limited warranty, this cable offers exceptional value and peace of mind for professional installations.