The JBX43006 4-meter LC/APC to LC/UPC simplex fiber patch cable represents enterprise-grade connectivity for demanding network environments. Designed specifically for telecommunications, data center, and fiber optic network installations, this cable delivers superior signal integrity and reliable performance. **Technical Excellence:** Constructed with 9/125 singlemode fiber and G.657.A1 glass specifications, this cable provides industry-leading attenuation characteristics: 0.25 dB/km at 1310 nm and 0.35 dB/km at 1550 nm. The measured insertion loss of ≤0.35dB (0.15dB typical) and return loss ≥20dB exceed standard requirements, ensuring optimal light transmission and minimal signal degradation. Attenuation testing complies with ANSI/TIA/EIA-455-171-A-2001 standards. **Compliance & Safety:** TAA (Trade Agreements Act) compliant and RoHS/ELV certified under EU Directive 2002/95/EC, making it suitable for government and regulated installations. The OFNR (Optical Fiber Non-Conductive Riser) yellow jacket meets building fire codes and resists crushing with its compact 1.8mm outer diameter. **Practical Advantages:** The straight-through polarity configuration simplifies installation without signal conversion complexity. Yellow color coding aids cable identification and organization in complex multi-cable environments. Custom lengths available for specialized applications. Packaging includes 10x10x10 case dimensions for efficient storage and transport. **Application Versatility:** Ideal for linking network equipment, telecommunications hubs, data centers, and fiber distribution systems. Perfect for upgrading existing infrastructure or establishing new connections requiring singlemode transmission over 4-meter distances. **Support & Logistics:** Ships from strategically located US warehouses (Danville CA, Fort Worth TX, Beaufort SC) with free standard shipping on orders exceeding $99. 90-day limited warranty provides peace of mind. Manufactured in Taiwan, US, or China with consistent quality standards across all sources.