The JBX42595 70m ST/APC to FC/APC Duplex Singlemode Fiber Patch Cable represents premium-quality optical connectivity for professional networking infrastructure. This cable combines precision engineering with rigorous quality standards to deliver consistent, reliable performance in critical telecommunications and data transmission applications. Technical Excellence: Built with a 9/125 singlemode core and G.657.A1 glass fiber construction, this cable provides superior optical characteristics. The ultra-low insertion loss of ≤0.35dB (0.15dB typical) and return loss of ≥20dB ensure minimal signal degradation over the 70-meter span. Attenuation performance meets ANSI/TIA/EIA-455-171-A standards at both 1310nm (0.25 dB/km) and 1550nm (0.35 dB/km) wavelengths, supporting diverse optical networking requirements. Connector Configuration: The ST/APC to FC/APC connector pairing with Type A to B crossover polarity provides standard duplex patch cord functionality, making this cable compatible with most enterprise-grade network equipment. APC (Angled Physical Contact) connectors minimize back-reflection, ideal for sensitive optical systems. Compliance & Safety: TAA compliance ensures this cable meets federal procurement requirements, while RoHS/ELV certification confirms environmental responsibility. The OFNR (Optical Fiber, Nonconductive, Riser Rated) jacket provides flame resistance suitable for vertical riser installations, critical for building code compliance. Practical Benefits: The distinctive yellow jacket enables quick visual identification in cable management scenarios, reducing installation errors and maintenance time. The 1.8mm outside diameter provides flexibility for routing through tight spaces while maintaining durability. Custom lengths available for specific installation requirements. Applications: Ideal for data centers, telecommunications facilities, campus backbone connections, and long-distance network spans requiring certified singlemode performance. Warranty & Support: Backed by a 90-day limited warranty. Ships from multiple US locations with free standard shipping on orders exceeding $99.