The JBX43656 75m ST/APC to LC/UPC simplex singlemode fiber patch cable represents a premium solution for professional fiber optic networking. This cable combines precision engineering with reliable performance for mission-critical applications requiring long-distance signal transmission. **Key Technical Specifications:** This singlemode fiber cable features a 9/125 micron core construction with G.657.A1 glass fiber, specifically designed for telecommunications-grade applications. The ST/APC (straight-tip, angled physical contact) connector provides superior optical performance, while the LC/UPC (lucent connector, ultra-physical contact) termination ensures compatibility with modern networking equipment. At 75 meters, this length accommodates extensive network installations, building backbones, and inter-rack connections. **Performance Metrics:** With insertion loss of ≤0.35dB (0.15dB typical) and return loss ≥20dB, this cable exceeds industry standards for signal integrity. Attenuation rates of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm ensure minimal signal degradation over extended distances. These specifications have been validated in accordance with ANSI/TIA/EIA-455-171-A-2001 standards. **Construction & Compliance:** The cable features a robust 1.8mm outside diameter with OFNR (Optical Fiber, Nonconductive, Riser-rated) yellow jacket, providing excellent durability and easy identification in complex network environments. It maintains straight-through polarity throughout its length and is RoHS/ELV compliant, meeting EU directive 2002/95/EC requirements. TAA compliance ensures this cable meets U.S. government procurement standards. **Applications & Use Cases:** Ideal for telecommunications infrastructure, data center backbone connections, high-speed network deployments, and long-distance fiber optic links. The 75-meter length accommodates multi-floor buildings, large facility interconnections, and equipment installations requiring extended cable runs. **Additional Benefits:** - Custom lengths available for specialized requirements - 90-day limited warranty for peace of mind - Free standard shipping on orders over $99 - Multiple U.S. fulfillment locations for fast delivery - Professional-grade construction ensures long-term reliability This cable represents an excellent choice for network administrators, telecommunications professionals, and facilities managers seeking dependable, standards-compliant fiber connectivity solutions.