The JBX05190 Cisco QSFP-4X10G-AC1M compatible breakout DAC cable represents a professional-grade solution for modern data center infrastructure. Designed to bridge the gap between high-capacity QSFP+ ports and quad SFP+ connectivity, this 1-meter active breakout cable enables seamless equipment integration without compromising performance. Key Technical Specifications: This cable features a robust 30AWG twinax copper construction enclosed in protective plastic jacketing, specifically engineered to maintain signal integrity over the 1-meter distance. The QSFP+ connector connects to four individual SFP+ ports, allowing organizations to maximize port utilization and scalability. Supporting full 40GBASE-CR4 performance, each of the four channels operates independently at 10GB, totaling 40GB aggregate bandwidth. Performance & Compliance: Qualified to IEEE 802.3ba specifications and SFF-8436 standards, this cable meets stringent performance benchmarks required for mission-critical applications. Operating temperature range of 0-70°C accommodates typical data center environments, while comprehensive certifications (RoHS, TUV, UL) demonstrate compliance with international safety and environmental regulations. Applications & Use Cases: Ideal for server-to-switch connections, storage area network (SAN) implementations, and high-performance computing clusters. The breakout design proves particularly valuable in environments where QSFP+ equipment must communicate with legacy or distributed SFP+ infrastructure, eliminating expensive hardware replacement cycles. Value Proposition: Compared to optical solutions, direct attach copper (DAC) cables offer superior cost efficiency, lower power consumption, and reduced latency. The active design ensures optimal signal conditioning, delivering reliable performance in demanding enterprise environments. With custom brand programming available and a 90-day limited warranty, this cable provides flexibility and peace-of-mind protection. Shipping & Support: Qualified for free standard shipping on orders exceeding $99, with convenient fulfillment from multiple U.S. locations (Danville, CA and Beaufort, SC). Whether you're upgrading existing infrastructure or deploying new high-speed networks, the JBX05190 delivers enterprise-grade reliability at competitive pricing.