The JBX42141 SC/APC to SC/UPC duplex single mode fiber patch cable represents the gold standard for professional fiber optic installations. This 50-meter cable is specifically designed for organizations requiring TAA compliance and superior optical performance in critical network infrastructure. **Key Features:** - Duplex configuration with two 9/125 single mode fibers - SC/APC to SC/UPC connector pairing for optimal signal integrity - TAA compliant for government and federal procurement requirements - RoHS/ELV certified for environmental compliance - Riser-rated (OFNR) yellow PVC jacket for safety and visibility - G.657.A1 specification for improved bend radius performance - 1.8mm outside diameter for flexible routing **Superior Performance Specifications:** - Insertion Loss: ≤0.35dB (0.15dB typical) - Return Loss: ≥20dB across operating wavelengths - Attenuation: 0.25 dB/km @ 1310nm; 0.35 dB/km @ 1550nm - Tested per ANSI/TIA/EIA-455-171-A standards **Applications:** Ideal for data centers, telecommunications facilities, enterprise networks, and any environment requiring single mode fiber connectivity with government compliance requirements. The duplex configuration enables bidirectional communication over a single cable run, reducing installation complexity and cost. **Quality Assurance:** Backed by a 90-day limited warranty. Custom lengths available upon request to accommodate specific installation requirements. Ships from multiple domestic locations (CA, TX, SC) for fast delivery. Qualifies for free standard shipping on orders exceeding $99. **Installation Advantages:** The Type A to B crossover polarity configuration eliminates the need for additional crossover adapters in standard duplex patch applications. The bright yellow jacket provides excellent cable identification in dense cable environments, reducing installation errors and simplifying future maintenance and troubleshooting.