The JBX03221 represents an advanced solution in active optical cable (AOC) technology, specifically engineered for demanding 400GB data center applications. As an Arista AOC-D-4Q-400G-50M compatible alternative, this 50-meter breakout cable delivers exceptional performance for organizations requiring high-capacity network infrastructure without the complexity of traditional fiber installation methods. **Technical Specifications & Architecture:** This QSFP-DD to 4x QSFP56 breakout configuration provides unprecedented flexibility in network design, allowing single high-density connections to distribute across multiple standard 100GB ports. The cable utilizes 16-strand OM3 50/125 multimode fiber, delivering 400GBASE-SR8 performance across the full 50-meter span. This multimode construction ensures excellent signal integrity while maintaining cost-effectiveness compared to single-mode alternatives, making it ideal for intra-data center connectivity up to 300 meters. **Safety & Compliance:** The LSZH (Low Smoke Zero Halogen) riser-rated jacketing significantly reduces toxic emissions during potential fire incidents, meeting stringent building codes and safety regulations. Comprehensive certifications including UL, TUV, FDA (21CFR 1040.10), and Class 1 Laser compliance ensure compatibility with enterprise security and safety protocols. Full RoHS/ELV directive compliance guarantees environmental responsibility and future regulatory adherence. **Performance & Reliability:** Qualified to IEEE 802.3cm specifications and QSFP-DD MSA/CMIS standards, this cable guarantees seamless integration with existing Arista and compatible networking equipment. The active optical design eliminates signal degradation over 50 meters, providing consistent 400GB/s throughput. Operating temperature range of 0-70°C (32-158°F) accommodates diverse data center environments from climate-controlled facilities to network edge locations. **Application & Benefits:** Ideal for data centers, telecommunications facilities, cloud infrastructure providers, and enterprises requiring high-capacity backbone connectivity. Eliminates extensive copper cabling infrastructure, reducing installation complexity and operational costs. Supports flexible network topology modifications without expensive rewiring. The breakout design optimizes space utilization in high-density network environments. **Warranty & Support:** Backed by a comprehensive 90-day limited warranty with custom brand programming available. Ships from convenient U.S. locations (California and South Carolina) with free standard shipping on orders exceeding $99, ensuring rapid deployment for time-sensitive network upgrades.