The JBX42265 70-meter LC/APC to ST/UPC duplex singlemode fiber patch cable represents a professional-grade solution for telecommunications, data centers, and enterprise network installations requiring reliable long-distance signal transmission. **Technical Specifications:** This cable features 9/125 singlemode fiber construction with G.657.A1 low-bending-loss glass fiber, enabling deployment in space-constrained installations. The duplex configuration provides two independent fiber strands for simultaneous bidirectional communication. With insertion loss of ≤0.35dB at standard wavelengths (0.25 dB/km at 1310nm, 0.35 dB/km at 1550nm) and return loss ≥20dB, this cable maintains signal quality across the full length of the 70-meter run. **Construction & Safety:** The 1.8mm outer diameter plastic jacket features OFNR (Optical Fiber Non-conductive Riser) rating, allowing installation in vertical cable runs and plenum spaces without conduit. The yellow jacket provides visual identification in complex installation environments. TAA compliance and RoHS/ELV certification ensure suitability for government procurement, healthcare, and regulated industries. **Applications:** Ideal for campus networks, data center interconnects, telecommunications facilities, and long-distance network backbone installations. The LC/APC to ST/UPC configuration supports mixed-connector environments common in network upgrades and hybrid systems. **Custom Options & Availability:** Available in custom lengths to meet specific project requirements. Ships from Danville CA, Fort Worth TX, and Beaufort SC with free standard shipping on orders exceeding $99. Packaged in protective 10x10x10 cases for secure handling. **Quality Assurance:** Attenuation tested per ANSI/TIA/EIA-455-171-A-2001 standards. 90-day limited warranty covers manufacturing defects. Manufactured in Taiwan, USA, and China using consistent quality standards.