The JBX88406 ST/ST Duplex Singlemode Fiber Patch Cable represents enterprise-grade connectivity engineered for demanding network environments. This 4-meter cable combines precision engineering with practical design features that professionals demand. **Core Performance Specifications:** Built with 9/125 singlemode fiber and G.657.A1 glass composition, this cable delivers exceptional attenuation performance: 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm. The low insertion loss (≤0.35dB typical 0.15dB) and high return loss (≥20dB) ensure minimal signal degradation, critical for long-distance telecommunications and high-speed data transmission. **Compliance & Standards:** Fully TAA compliant for government and regulated installations. Meets RoHS/ELV directives and ANSI/TIA/EIA-455-171-A standards for attenuation testing. OFNR riser-rated jacketing provides fire safety compliance for building installations. **Practical Design Features:** The distinctive pink jacket simplifies cable management and identification in multi-strand installations. Type A to B crossover polarity is ideal for most duplex patch cord applications. Compact 1.8mm diameter enables flexible routing through tight spaces. **Versatile Applications:** Perfect for telecommunications facilities, data centers, enterprise networks, laboratory testing, and fiber-to-the-premises (FTTP) installations. The 4m length accommodates standard rack spacing and equipment separation. **Quality Assurance:** 90-day limited warranty covers manufacturing defects. Precision-tested ST/UPC connectors ensure consistent performance. Custom lengths available for specialized requirements. **Value & Convenience:** Qualifies for free standard shipping on orders over $99. Ships from multiple US distribution centers for rapid delivery. European and Asian manufacturing partnerships ensure consistent availability.