The JBX03920 100-meter QSFP28 Active Optical Breakout Cable represents an advanced solution for enterprises and data centers requiring high-density, high-speed interconnectivity. This cable directly replaces Arista's AOC-Q-4S-100G-100M and provides seamless compatibility with Arista switching infrastructure and other QSFP28 MSA-compliant equipment. **Key Technical Features:** This breakout cable features a single QSFP28 connector on one end and four individual SFP28 connectors on the other, enabling flexible 1:4 breakout configurations. The OM4 50/125 multimode fiber core ensures optimal performance for short-reach applications, while the 8-strand construction delivers bidirectional 100GB transmission at rates up to 100Gbps per lane. The cable is qualified to IEEE 802.3bm and SFF-8665 standards, guaranteeing compatibility with standards-compliant equipment. **Safety & Compliance:** Built with LSZH (Low Smoke Zero Halogen) jacketing rated for OFNR (Optical Fiber Non-Conductive Riser), this cable meets strict fire safety codes for in-building deployment. Comprehensive certifications including Class 1 Laser, UL/FDA 21CFR 1040.10, TUV, and RoHS/ELV compliance ensure safe operation in regulated environments. The plastic jacketing with integrated fiber strands provides durability and flexibility for installation in tight spaces and cable trays. **Performance & Reliability:** Operating across a wide temperature range of 0 to 70°C (32 to 158°F), this cable maintains consistent performance in diverse data center environments. The 100-meter length accommodates extended distances between equipment without signal degradation, making it ideal for campus networks and large-scale facility deployments. A 90-day limited warranty provides peace of mind for mission-critical installations. **Applications & Use Cases:** Perfect for data center interconnects, high-performance computing clusters, content delivery networks, and enterprise backbone networks. The breakout configuration allows single high-speed ports to fan out to multiple downstream connections, maximizing port utilization and reducing infrastructure costs. With free standard shipping on orders exceeding $99 and availability from multiple U.S. locations, rapid deployment and replacement are easily achievable. **Custom Solutions Available:** For organizations requiring custom branding or specifications, custom programming options are available to meet unique operational requirements.