The JBX88256 represents a premium solution for organizations requiring high-reliability fiber optic connectivity. This 4-meter ST/ST duplex singlemode fiber patch cable combines rigorous engineering standards with practical performance specifications that exceed industry requirements. Key Performance Specifications: The cable features a 9/125 singlemode core with G.657.A1 glass fiber construction, delivering exceptional signal fidelity across standard telecom wavelengths. Attenuation performance is rated at 0.25 dB/km (1310nm) or 0.35 dB/km (1550nm), with measured insertion loss of ≤0.35dB (0.15dB typical) and return loss exceeding 20dB. These specifications ensure minimal signal degradation and superior data transmission integrity. Compliance and Safety: TAA compliance makes this cable suitable for government and regulated procurement environments. The RoHS/ELV directive compliance and EU directive 2002/95/EC certification ensure environmental responsibility and workplace safety. OFNR riser-rated jacketing provides fire safety protection appropriate for indoor building installations. Physical Design: The 1.8mm outside diameter and compact 5.0mm width provide flexible routing through cable trays and conduit systems. The robust plastic accessory construction withstands field installation demands, while the blue color identification simplifies network management and troubleshooting. Applications and Use Cases: Ideals for data center interconnections, telecommunications infrastructure, enterprise campus networks, and server room implementations. The ST/UPC connectors provide Type A to B crossover polarity, the most common duplex patch cord configuration for seamless integration with existing equipment. Customization and Support: Custom length options accommodate specific deployment requirements, while free standard shipping on orders over $99 reduces acquisition costs. Ships from multiple US locations ensuring rapid delivery. The 90-day limited warranty provides confidence in long-term reliability. This cable represents the optimal balance of performance, compliance, and value for network professionals seeking dependable fiber connectivity solutions.