The JBX03891 3-meter Cisco QSFP28 100GBASE-SR4 active optical cable represents a premium solution for modern high-speed data center connectivity. This breakout AOC seamlessly replaces the original Cisco part number QSFP-4X25G-AOC3M while delivering exceptional value and reliability. **Technical Excellence** Engineered to IEEE 802.3bm specifications, this cable operates at 100GB data rates with OM3 50/125 multimode fiber technology. The 8-strand fiber configuration ensures optimal signal quality and minimal latency. Operating temperature range of 0-70°C accommodates diverse deployment environments. The cable's compact 12x12x3mm form factor integrates cleanly into rack equipment without occupying excessive space. **Safety & Compliance** Full compliance with RoHS/ELV directives and EU 2002/95/EC standards reflects commitment to environmental responsibility. UL/FDA and TUV certifications, combined with Class 1 Laser safety rating, ensure end-to-end safety for personnel and equipment. LSZH jacketing provides critical fire safety in enclosed spaces where smoke generation poses risks. **Superior Design Features** The QSFP28 to 4x SFP28 breakout configuration enables flexible network scaling. Active optical technology eliminates copper constraints, supporting longer distances with lower power consumption compared to traditional DAC alternatives. Plastic jacketing with fiber strands provides durability while maintaining flexibility for tight installation spaces. **Business Advantages** Free standard shipping on orders over $99 reduces total cost of ownership. 90-day limited warranty provides peace of mind. Custom brand programming availability accommodates specific enterprise requirements. Ships from multiple U.S. locations (Danville, CA and Beaufort, SC) for rapid deployment. **Ideal Applications** Perfect for high-speed interconnects, SAN implementations, cloud infrastructure, and enterprise networking. Data center professionals value this cable's reliability, compliance certifications, and Cisco compatibility for mission-critical deployments.