The JBX03357 50m 400GBASE-SR8 QSFP-DD Active Optical Cable represents the intersection of cutting-edge networking technology and practical data center requirements. Purpose-built for Arista-compatible infrastructure, this cable delivers 400GB/s transmission speeds over distances up to 50 meters, making it an essential component for modern enterprise networks. **Technical Specifications:** This active optical cable features a sophisticated 16-strand OM3 50/125 multimode fiber core that ensures reliable, high-speed signal transmission. The cable's QSFP-DD form factor provides dual-density connectivity, allowing for maximum port density in compact switch architectures. Operating across a wide temperature range of 0-70°C (32-158°F), this cable maintains consistent performance in diverse data center environments. **Construction & Safety: The cable jacket employs Low Smoke Zero Halogen (LSZH) OFNR-rated materials, critical for installation in plenum spaces and enclosed network cabinets where fire safety codes apply. The plastic jacketing with integrated fiber strands provides excellent mechanical protection while maintaining flexibility for complex routing scenarios. At 12mm x 12mm x 50m dimensions, the cable is compact enough for dense deployments yet robust for professional installations. **Compliance & Certification:** Fully compliant with RoHS/ELV standards and EU Directive 2002/95/EC, ensuring environmentally responsible manufacturing. Qualified to IEEE 802.3cm specifications and QSFP-DD MSA standards. Certified for Class 1 Laser safety, TUV approved, and FDA compliant per 21CFR 1040.10, providing comprehensive safety assurance. **Applications & Use Cases:** Ideal for data center interconnects, high-performance computing clusters, and enterprise network backbone installations. The 50-meter reach perfectly bridges inter-cabinet distances in medium-to-large data centers. Arista compatibility makes deployment straightforward in existing network environments. **Value Proposition:** Compared to traditional copper cabling, this AOC eliminates electromagnetic interference and crosstalk while reducing power consumption and heat generation. The cable ships from US locations (Danville, CA and Beaufort, SC) with free standard shipping on orders over $99, ensuring quick delivery. Backed by a 90-day limited warranty and supported by custom brand programming availability for enterprise customers. **Installation Considerations:** Ensure proper handling of fiber optic components during installation. The cable's LSZH rating makes it suitable for various installation environments, from open-air racks to enclosed conduit systems. The Riser rating (OFNR) provides additional flexibility for vertical cable runs in building infrastructure.