The JBX42990 45-meter LC/UPC to LC/UPC simplex singlemode fiber patch cable is engineered for high-performance network connectivity in professional telecommunications and data center installations. This cable represents the optimal choice for organizations requiring reliable, standards-compliant fiber optic solutions. **Key Features & Specifications:** This cable features a 9/125 micrometer singlemode fiber core, specifically designed for long-distance, single-mode signal transmission. The LC/UPC connectors provide low-loss, reliable connections with ≤0.35dB insertion loss and ≥20dB return loss, ensuring signal integrity across extended runs. The G.657.A1 glass fiber specification enables enhanced bend-radius performance while maintaining superior optical characteristics. **Performance & Compliance:** Tested to ANSI/TIA/EIA-455-171-A standards, this cable delivers consistent attenuation rates of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm. TAA compliance and RoHS/ELV certification ensure suitability for government contracts and environmentally-regulated applications. The 1.8mm outside diameter with OFNR (riser-rated) yellow jacketing meets building codes for commercial installations. **Applications:** Ideal for interconnecting network equipment, telecommunications infrastructure, data center backbone connections, and signal transmission systems requiring singlemode fiber reliability. The 45-meter length accommodates mid-to-long-range installations within buildings and between adjacent facilities. **Flexibility & Support:** Custom length options are available to meet specific installation requirements. Multiple fulfillment centers in Danville, CA, Fort Worth, TX, and Beaufort, SC ensure rapid shipping, with free standard shipping on orders exceeding $99. The 90-day limited warranty provides peace of mind for mission-critical applications.