The JBX05178 10-meter 40GBASE-CR4 QSFP+ to SFP+ direct attach copper cable is a robust networking solution designed for organizations requiring high-speed, reliable data transmission in mission-critical environments. As a Ruckus-compatible alternative to OEM part E40G-QSFP-4SFP-C-1001, this cable delivers exceptional performance while offering significant cost savings. **Technical Excellence** Built to IEEE 802.3ba specifications, this active breakout DAC cable supports 40GB/s data rates with minimal latency and power consumption. The 28AWG twinax copper construction provides superior signal integrity compared to passive alternatives, making it ideal for longer cable runs and challenging installations. The cable's robust plastic jacketing protects the copper core while maintaining flexibility for easy deployment in dense server racks. **Compliance & Certification** Fully RoHS and ELV compliant, this cable meets EU directive 2002/95/EC and carries TUV/UL safety certifications. These credentials ensure the product meets international standards for environmental safety and electrical performance, critical for enterprise data centers operating under strict regulatory requirements. **Perfect Compatibility** Direct Ruckus compatibility eliminates integration concerns and ensures optimal performance with existing infrastructure. The QSFP+ to 4x SFP+ configuration enables flexible network architecture, allowing single high-speed connections to split into multiple 10GB connections when needed. **Optimal Operating Conditions** With an operating temperature range of 0-70°C (32-158°F), this cable performs reliably in diverse environmental conditions. The 10-meter length provides adequate reach for typical data center topologies without excessive signal degradation. **Value & Support** Every cable ships from conveniently located US warehouses (Danville, CA or Beaufort, SC) with free standard shipping on orders exceeding $99. The 90-day limited warranty provides peace of mind, while custom brand programming options accommodate white-label and reseller requirements. **Applications** Ideal for: data center networking, enterprise server connections, high-performance computing, network backbone upgrades, and virtualization infrastructures requiring reliable 40GB connectivity. Choose the JBX05178 for enterprise-grade performance, proven reliability, and exceptional value in direct attach copper cabling solutions.