The JBX42970 LC/UPC to LC/UPC Singlemode Fiber Patch Cable is a premium-quality networking solution engineered for telecommunications professionals, data center operators, and enterprise IT departments. This 0.5-meter simplex cable delivers exceptional optical performance with a 9/125 micrometers fiber core specifically designed for singlemode long-distance transmission. **Key Performance Features:** This cable achieves outstanding attenuation characteristics with 0.25 dB/km at 1310 nm and 0.35 dB/km at 1550 nm wavelengths. The typical insertion loss of just 0.15dB ensures minimal signal loss over the connection point. Return loss specifications of ≥20dB guarantee signal integrity and reduce reflections that could compromise network performance. These metrics make the cable ideal for critical telecommunications applications where signal quality is paramount. **Compliance & Safety:** The cable is TAA (Trade Agreements Act) compliant, making it suitable for government and federal procurement projects. It meets RoHS and ELV directives (EU 2002/95/EC), ensuring environmental responsibility and safety in hazardous substance restrictions. OFNR riser rating allows safe installation in vertical cable runs within building infrastructures without requiring conduit protection. **Technical Specifications:** Constructed with G.657.A1 grade glass fiber and featuring straight-through polarity configuration, the cable maintains consistent performance across standard telecommunications frequencies. The 1.8mm outside diameter plastic jacketing provides durability while maintaining flexibility for installation in space-constrained environments. **Flexibility & Availability:** While this product comes in a standard 0.5-meter length, custom lengths are available to meet specific installation requirements. The cable ships from multiple US warehouses in California, Texas, and South Carolina, with free standard shipping on orders exceeding $99. **Applications:** Ideal for data center patching, telecommunications networks, fiber-to-the-premises (FTTP) installations, and enterprise LAN backbone connections. The simplex configuration supports unidirectional signal transmission, making it suitable for applications using separate transmit and receive fibers. **Warranty & Support:** Backed by a comprehensive 90-day limited warranty, ensuring customer satisfaction and reliability in mission-critical installations.