The JBX43495 ST/APC to ST/UPC Simplex Fiber Patch Cable represents a high-performance solution for telecommunications and data center environments requiring reliable optical signal transmission. This 20-meter cable is manufactured to exacting standards and available from multiple U.S. locations (Danville, CA; Fort Worth, TX; Beaufort, SC) for expedited delivery. **Technical Excellence:** Feauring premium 9/125 singlemode fiber core technology, this simplex cable delivers superior performance characteristics. The insertion loss specification of ≤0.35dB (typical 0.15dB) and return loss of ≥20dB exceeds industry expectations for applications requiring minimal signal degradation. Testing conducted per ANSI/TIA/EIA-455-171-A standards confirms attenuation rates of 0.25 dB/km at 1310nm or 0.35 dB/km at 1550nm, supporting both legacy and modern wavelength applications. **Design and Durability:** Constructed with G.657.A1 optical fiber and protected by OFNR riser-rated jacketing, the cable meets fire safety standards for indoor installations. The distinctive yellow exterior provides visual identification in complex network environments, reducing installation errors and troubleshooting time. The compact 1.8mm diameter facilitates easy routing through conduit and cable trays. **Compliance and Certification:** Full TAA (Trade Agreements Act) compliance ensures eligibility for government and institutional procurement. RoHS and ELV directive compliance (EU 2002/95/EC) demonstrates commitment to environmental responsibility. The optical accessory classification under harmonization code 8544.70.0000 streamlines customs clearance for international orders. **Flexibility and Value:** Custom length options accommodate non-standard installation requirements without costly field splicing. The 90-day limited warranty provides peace of mind for critical network infrastructure. Standard packaging (10x10x10) supports bulk deployments for larger facilities. **Ideal Applications:** Perfect for backbone connectivity, server interconnections, telecommunications networks, and any installation requiring high-performance singlemode fiber transmission. The ST/APC-to-ST/UPC configuration supports mixed-connector environments common in network upgrades and expansions. Quality, reliability, and performance combine in this professional-grade fiber patch cable solution.