The JBX03861 represents a premium solution for organizations requiring high-capacity optical connectivity in their network infrastructure. As a direct Cisco QSFP-4X25G-AOC20M compatible replacement, this 20-meter active optical cable (AOC) eliminates compatibility concerns while delivering enterprise-grade performance. **Technical Specifications:** This breakout cable features a QSFP28 male connector on one end and four SFP28 connectors on the other, enabling seamless integration with existing equipment. The 8-strand OM3 multimode fiber core (50/125µm) supports 100Gbps data rates per IEEE 802.3bm standards, making it ideal for 4x 25Gbps channel applications. Operating temperature range of 0-70°C ensures reliable performance across diverse deployment environments. **Construction & Compliance:** The cable utilizes plastic jacketing with an OFNR (Riser Rated) LSZH (Low Smoke Zero Halogen) outer layer, reducing toxic fume emission during emergencies while meeting building fire codes. Full RoHS (Restriction of Hazardous Substances) and EU directive 2002/95/EC compliance ensures safe handling and disposal. **Safety & Certifications:** Comprehensive safety validation includes Class 1 Laser certification, UL/FDA approval (21CFR 1040.10), and TUV certification, guaranteeing safe operation in professional environments. **Applications & Use Cases:** Ideal for data center interconnects, enterprise campus networks, high-frequency trading environments, and any application requiring ultra-reliable 100G connectivity. The 20-meter length accommodates medium-distance runs while active signal amplification ensures optimal performance. **Warranty & Support:** Backed by a 90-day limited warranty and shipped from strategically located US warehouses (Danville, CA and Beaufort, SC) for rapid delivery. Custom branding programming available for enterprise deployments.