The JBX03427 400GBASE-SR4 QSFP-DD Active Optical Cable represents cutting-edge data center connectivity technology, purpose-built for organizations deploying Arista network switches at 400GB speeds. This 5-meter cable delivers exceptional performance while maintaining the flexibility required for diverse rack and cabinet configurations. **Technical Excellence** Engineered to IEEE 802.3db specifications and QSFP-DD MSA standards, this AOC utilizes 16-strand OM3 50/125 multimode fiber architecture. The active optical design eliminates traditional copper limitations, enabling longer reach capabilities with superior signal integrity. CMIS (Common Management Interface Specification) support ensures compatibility with intelligent management frameworks. **Safety and Compliance** Comprehensive safety certifications including Class 1 Laser, TUV, UL/FDA, and 21CFR 1040.10 compliance guarantee safe operation in enterprise environments. OFNR (Riser Rated) LSZH jacketing provides exceptional fire safety properties, meeting building codes across commercial installations. RoHS and EU directive 2002/95/EC compliance reflects environmental responsibility. **Superior Reliability** The cable operates consistently across extended temperature ranges (0-70°C / 32-158°F), accommodating hot data centers and demanding environments. Plastic jacketing with precision fiber strand construction provides durability and protection against physical damage. **Seamless Integration** Direct compatibility with Arista part A-D400-Q400-5M ensures plug-and-play deployment without validation concerns. Custom brand programming availability supports white-label applications and enterprise standardization initiatives. **Practical Advantages** With free standard shipping on orders exceeding $99 and fulfillment from multiple U.S. locations (Danville, CA and Beaufort, SC), rapid deployment is assured. The 90-day limited warranty provides risk mitigation for critical infrastructure investments. Ideal for hyperscale data centers, enterprise campus networks, and service provider environments, this AOC delivers the 400GB performance modern networks demand while ensuring reliability, safety, and long-term value.