The JBX03864 20-meter HPE-compatible 100GBASE-SR4 QSFP28 active optical cable represents a cost-effective solution for upgrading and scaling data center network infrastructure. As a direct replacement for HPE part 845424-B21-20M, this premium breakout AOC delivers exceptional performance and reliability in demanding networking environments. **Technical Specifications:** This active optical cable features a QSFP28 connector on one end that breaks out into four individual SFP28 connectors, enabling simultaneous transmission of four 25GB signals from a single 100GB port. The cable utilizes OM3 50/125 multimode fiber core technology, optimizing signal integrity over 20 meters while maintaining full compliance with IEEE 802.3bm standards and QSFP28 MSA specifications. **Construction & Safety:** The cable's plastic jacket combines durability with safety. The LSZH (Low Smoke Zero Halogen) OFNR (Riser Rated) construction means the cable produces minimal smoke and no halogenic gases if exposed to fire, meeting stringent building codes for indoor installations. With 8 fiber strands and comprehensive safety certifications including Class 1 Laser, UL/FDA, and TUV approval, this cable meets enterprise-grade requirements. **Compatibility & Applications:** This cable is specifically engineered for HPE systems and equipment utilizing 100GBASE-SR4 technology. Common applications include: • Data center switch interconnects • Server-to-storage connectivity • High-speed network backbone expansion • Multi-tenant server environments • Performance-critical cloud infrastructure **Performance Benefits:** The 20-meter length eliminates the need for multiple shorter cables, reducing clutter and installation complexity. Active optical technology ensures signal quality without degradation, while the breakout configuration maximizes port utilization by converting single high-capacity connections into four usable 25GB links. **Warranty & Support:** Backed by a 90-day limited warranty, this product combines reliability with value. Custom brand programming is available for enterprise deployments. The cable ships from multiple US locations (Danville, CA and Beaufort, SC), ensuring rapid delivery with free standard shipping on qualifying orders. **Standards Compliance:** Fully RoHS and ELV compliant with EU Directive 2002/95/EC compliance, this cable meets international environmental and safety standards. Harmonization Code 8544.70.0000 classification confirms proper regulatory categorization.