The JBX03439 Active Optical Cable (AOC) represents a cutting-edge solution for modern data center infrastructure requiring high-speed, reliable connectivity. This 25-meter Cisco-compatible breakout cable is engineered to replace the OEM Cisco QSFP-4XLC-AOC25M part number, providing cost-effective performance without compromising quality or compatibility. **Key Technical Features:** This cable utilizes advanced OM3 50/125 multimode fiber technology capable of supporting full 40GBASE-SR4 data rates over its 25-meter length. The single QSFP+ connector breaks out into four individual LC duplex connectors, allowing one cable to replace multiple single-strand connections while reducing cable clutter and improving airflow in server racks. The 8-strand fiber configuration ensures redundancy and optimal signal transmission. **Safety & Compliance:** The LSZH (Low Smoke Zero Halogen) riser-rated jacketing meets OFNR fire safety standards required in vertical cable runs. Comprehensive certifications including Class 1 Laser, UL, FDA (21CFR 1040.10), and TÜV compliance ensure safe operation in diverse installation environments. Full RoHS and EU Directive 2002/95/EC compliance demonstrates environmental responsibility. **Performance & Durability:** Operating reliably between 0-70°C (32-158°F), this cable performs consistently across varied data center conditions. The robust plastic jacketing with fiber strands provides excellent protection against physical stress and environmental factors. IEEE 802.3ba qualification guarantees standards-based performance. **Ideal Applications:** Perfect for enterprise data centers, high-performance computing clusters, storage area networks (SANs), and campus backbone connections. The 25-meter length accommodates mid-range connectivity needs within larger infrastructure deployments. **Shipping & Support:** Enjoy free standard shipping on orders over $99, with convenient fulfillment from Danville, CA and Beaufort, SC locations. A 90-day limited warranty provides peace of mind with your purchase.