The JBX88331 50-meter ST/ST duplex singlemode fiber patch cable represents the gold standard in fiber optic connectivity for mission-critical networking applications. Manufactured to exacting standards with quality control testing per ANSI/TIA/EIA-455-171-A-2001, this cable delivers consistent, predictable performance across demanding network infrastructures. **Superior Optical Performance** Built with a 9/125 micron core and G.657.A1 grade glass fiber, this singlemode cable minimizes chromatic dispersion while supporting both 1310nm and 1550nm wavelengths. The typical insertion loss of 0.15dB and return loss of ≥20dB exceed industry requirements, ensuring maximum signal strength and data integrity over extended distances. These specifications make it ideal for long-haul telecommunications, high-speed data transmission, and precision measurement applications. **Professional-Grade Construction** The cable features ST/UPC connectors in Type A to B crossover configuration—the industry standard for duplex patch cords. The 1.8mm diameter jacket provides optimal balance between flexibility for routing and structural integrity. OFNR (Optical Fiber Non-Conductive Riser) rated jacketing allows safe installation in vertical runs and plenum-adjacent areas, complying with building codes and fire safety standards. **Compliance and Reliability** TAA compliant certification ensures this cable meets government procurement requirements for federal contracts. Full RoHS/ELV compliance demonstrates environmental responsibility without sacrificing performance. Each unit carries a 90-day limited warranty, and custom lengths are available for specialized installations. **Practical Applications** Perfect for data centers upgrading to singlemode infrastructure, telecommunications facilities, enterprise campus networks, and research institutions requiring precise fiber optic measurements. The 50-meter length accommodates most intermediate-distance runs between network equipment and distribution panels. **What's in the Box** Each cable ships in protective packaging with clear labeling. Free standard shipping applies on orders exceeding $99, with fulfillment available from multiple US distribution centers (California, Texas, South Carolina) ensuring fast delivery nationwide.