The JBX03840 100GBASE-SR4 QSFP28 Active Optical Cable represents a cutting-edge solution for modern data center infrastructure requiring high-capacity, short-to-medium range optical connectivity. This 10-meter breakout cable seamlessly integrates with Extreme Networks equipment while maintaining compatibility with IEEE 802.3bm and QSFP28 MSA standards. **Technical Specifications:** This active optical cable (AOC) utilizes 8 strands of OM3 50/125 multimode fiber, delivering 100GB data rates across a 10-meter span. The QSFP28 form factor on one end splits into four independent SFP28 connections, enabling flexible port allocation and simplified network architecture. The cable features OFNR (Riser Rated) LSZH jacketing, providing superior fire resistance and reduced smoke/toxic gas emissions—essential for in-building network installations. **Safety and Compliance:** Fully certified as Class 1 Laser (per LN #50 7/2001), UL/FDA (21CFR 1040.10), and TÜV approved, this cable meets the strictest international safety standards. RoHS and EU directive 2002/95/EC compliance ensures environmental responsibility and future-proof procurement. **Performance Benefits:** Designed for demanding environments, the cable maintains reliable performance across operating temperatures from 0-70°C. The multimode architecture provides cost-effective short-reach solutions compared to single-mode alternatives, making it ideal for data center backplane connectivity, switch-to-switch configurations, and high-speed storage area network (SAN) deployments. **Why Choose This Product:** Replacing Extreme Networks part number 10443, this cable offers direct compatibility with existing infrastructure. The active optical design eliminates passive cable limitations, ensuring signal integrity and reduced latency. With free standard shipping on orders exceeding $99 and availability from multiple U.S. fulfillment centers (Danville, CA and Beaufort, SC), rapid deployment is assured. **Applications:** Ideal for enterprise data centers, cloud infrastructure, content delivery networks, and high-frequency trading environments requiring deterministic, low-latency optical connectivity. The breakout configuration simplifies cabling management while maximizing port utilization in space-constrained installations. **Warranty & Support:** Backed by a 90-day limited warranty with custom brand programming available, this cable represents a reliable investment in your network infrastructure. Manufactured in Vietnam and China to stringent quality standards, it delivers professional-grade performance at competitive pricing.