The JBX88346 ST/ST duplex singlemode fiber patch cable represents professional-grade connectivity for mission-critical network infrastructure. This 4-meter cable is manufactured to stringent industry standards and designed for organizations requiring reliable, high-performance fiber optic connectivity. **Technical Excellence** Constructed with 9/125 singlemode fiber and G.657.A1 glass fiber technology, this cable provides exceptional performance characteristics. The insertion loss specification of ≤0.35dB (typical 0.15dB) ensures minimal signal degradation, while the return loss rating of ≥20dB maintains signal integrity. Attenuation rates of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm make this cable suitable for both traditional and modern wavelength divisions multiplexing (WDM) systems. **Compliance & Certification** Fully TAA-compliant, this cable meets Buy American Act requirements, making it suitable for government and federal procurement projects. RoHS and ELV directive compliance ensures environmental responsibility. Testing performed in accordance with ANSI/TIA/EIA-455-171-A-2001 standards guarantees performance reliability. **Installation Flexibility** The 1.8mm outside diameter provides manageable routing through standard cable management infrastructure. OFNR riser rating permits installation in building risers and plenum spaces without additional conduit protection. Type A to B crossover polarity configuration simplifies duplex patch cord applications—the most common configuration for dual-fiber connectivity. **Applications & Use Cases** Ideal for data centers, telecommunications facilities, enterprise networks, and campus infrastructure. Commonly deployed for connecting network switches, routers, transceivers, and optical multiplexers. Suitable for both single-mode long-distance and metro-area networks. **Availability & Support** Available in custom lengths for specialized deployment scenarios. Ships from multiple US locations (Danville CA, Fort Worth TX, Beaufort SC) with free standard shipping on orders exceeding $99. Includes 90-day limited warranty and customer support. Manufactured in Taiwan, United States, or China with consistent quality standards across all production facilities.