The JBX43576 4-meter ST/APC to FC/APC simplex fiber patch cable represents a premium solution for telecommunications and data center connectivity. Engineered with 9/125 singlemode fiber, this cable delivers exceptional performance for long-distance signal transmission at both 1310nm and 1550nm wavelengths. Key Technical Features: This cable achieves outstanding attenuation specifications of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm, with individual cable insertion loss tested at ≤0.35dB maximum. The return loss rating of ≥20dB ensures minimal signal reflection and optimal system performance. Manufactured to G.657.A1 glass fiber standards, the cable provides improved bend radius characteristics while maintaining full compliance with ANSI/TIA/EIA-455-171-A-2001 standards. Construction & Compliance: The 1.8mm outside diameter with OFNR riser-rated jacketing makes this cable ideal for both indoor installations and building plenum spaces. The yellow jacket provides superior visibility for quick identification and troubleshooting. TAA compliance ensures suitability for government and defense sector deployments, while RoHS/ELV directive adherence guarantees environmental responsibility. Applications & Use Cases: Perfect for fiber-to-the-desk (FTTD) installations, telecommunications equipment connections, and data center backbone cabling. The simplex configuration makes it ideal for unidirectional signal transmission applications. The 4-meter length provides flexibility for equipment spacing while minimizing excess cable management challenges. Customization & Support: Custom lengths are available to meet specific installation requirements. Ships from multiple U.S. locations for rapid delivery, with free standard shipping on orders exceeding $99. Backed by a 90-day limited warranty, ensuring customer confidence in product quality and performance. This professional-grade patch cable combines reliability, compliance, and exceptional optical performance for mission-critical network infrastructure.