The JBX88254 2.5-meter ST/ST duplex singlemode fiber patch cable represents professional-grade optical connectivity engineered for precision and reliability. Constructed with industry-leading specifications, this cable features a 9/125 singlemode core with G.657.A1 glass fiber, providing superior performance for long-distance fiber transmission across critical network infrastructure. **Key Performance Specifications:** This cable delivers exceptional performance metrics tested in accordance with ANSI/TIA/EIA-455-171-A standards. With an insertion loss of ≤0.35dB (0.15dB typical) and return loss exceeding 20dB, it ensures minimal signal degradation. Attenuation measurements of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm support both traditional and advanced wavelength applications. **Design & Construction:** The 1.8mm outside diameter enables easy routing through cable trays and conduits while maintaining durability. ST/UPC connectors with Type A to B crossover polarity provide industry-standard compatibility. The OFNR (Optical Fiber Non-Conductive Riser-rated) jacket meets building code requirements for vertical runs without conduit, making it ideal for in-building installations. **Compliance & Certification:** TAA compliant and RoHS/ELV certified, this cable meets government procurement standards and environmental regulations. Its compliance credentials make it suitable for federal projects and regulated industries requiring certified materials. **Applications:** Ideal for datacenters, telecommunications facilities, enterprise networks, and campus backbone connectivity. The duplex configuration supports bidirectional communication, eliminating the need for separate transmit/receive cables. **Custom Options:** Available in custom lengths beyond the standard 2.5m, allowing flexibility for various installation requirements. Ships from multiple US locations (Danville CA, Fort Worth TX, Beaufort SC) with free standard shipping on orders over $99. **Warranty & Support:** Backed by a 90-day limited warranty, ensuring customer confidence in product quality and performance.