The JBX43643 ST/APC to LC/UPC Singlemode Fiber Patch Cable represents professional-grade connectivity for fiber optic networks requiring precision and reliability. This 12-meter cable delivers exceptional performance in telecommunications infrastructure, data centers, and enterprise network environments. **Technical Excellence:** Built with 9/125 singlemode fiber and G.657.A1 glass composition, this cable provides bend-insensitive performance critical for modern network deployments. The simplex configuration offers dedicated single-strand transmission, making it ideal for unidirectional signal paths. Attenuation specifications of 0.25 dB/km at 1310 nm and 0.35 dB/km at 1550 nm ensure minimal signal loss over distance, while the ≤0.35dB insertion loss (0.15dB typical) guarantees superior signal integrity. **Connector Architecture:** The ST/APC to LC/UPC configuration accommodates diverse equipment across network segments. The APC (angled physical contact) ST termination provides superior return loss, while the standard LC/UPC connector offers universal compatibility with most network equipment and patch panels. **Installation & Safety:** Riser-rated (OFNR) jacketing allows plenum use in commercial building environments, meeting strict fire code requirements. The 1.8mm outer diameter fits standard conduit systems, while the bright yellow jacket facilitates rapid cable identification during troubleshooting and maintenance operations. **Compliance & Quality Assurance:** TAA compliance enables procurement by government agencies and regulated industries. RoHS/ELV certification ensures environmental responsibility. Manufactured across Taiwan, US, and China facilities, this cable meets ANSI/TIA/EIA-455-171-A-2001 attenuation testing standards with a 90-day limited warranty. **Availability & Logistics:** Multiple US shipping locations (Danville CA, Fort Worth TX, Beaufort SC) enable rapid delivery. Available in custom lengths for specialized applications, with free standard shipping on orders exceeding $99. The cable arrives in professional packaging suitable for inventory management and resale.