The JBX43493 ST/APC to ST/UPC simplex singlemode fiber patch cable represents a premium solution for telecommunications and data center applications demanding superior optical performance. This 12-meter cable is specifically designed for environments where precise signal transmission and reliability are critical. **Technical Specifications:** Built with a 9/125 singlemode core and G.657.A1 glass fiber, this cable provides excellent bend-loss resistance ideal for tight installation spaces. The cable achieves industry-leading attenuation rates of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm, ensuring signal integrity over extended distances. Insertion loss measures ≤0.35dB (0.15dB typical), with return loss ≥20dB, meeting or exceeding ANSI/TIA/EIA-455-171-A standards. **Connector Configuration:** The straight-through polarity configuration with ST/APC (angled physical contact) termination on one end and ST/UPC (ultra physical contact) on the other provides flexibility for mixed-connector network environments. This combination is particularly useful when interfacing with legacy systems or diverse equipment standards. **Compliance & Safety:** Fully TAA compliant and RoHS/ELV certified, this cable meets federal procurement requirements and environmental standards. The riser-rated (OFNR) yellow jacketing provides fire safety compliance while offering superior cable identification. The 1.8mm outer diameter fits standard telecommunications conduit. **Practical Applications:** - Data center interconnections - Telecommunications infrastructure - Enterprise LAN/WAN systems - Equipment-to-equipment connections - Backup and disaster recovery networks - Custom length availability for specific installations **Warranty & Support:** Backed by a 90-day limited warranty, with free standard shipping on orders over $99. Available from multiple distribution centers ensuring fast delivery and support.