The JBX05779 2m Ruckus-compatible 100GBASE-CR4 QSFP28 passive direct attach copper cable represents a cost-effective, high-performance solution for enterprise and data center networking applications requiring 100GB connectivity. This passive DAC eliminates the need for active electronics, reducing power consumption and heat generation while maintaining exceptional signal integrity. **Technical Specifications:** This cable features QSFP28 connectors on both ends and utilizes 28AWG twinax copper construction optimized for 100GBASE-CR4 transmission. Measuring 2 meters in length with compact dimensions of 12x12x2, it fits seamlessly into dense networking environments. The cable is qualified to IEEE 802.3bj specifications and meets QSFP28 MSA standards, ensuring compatibility with certified equipment. **Compliance & Safety:** Fully RoHS and ELV compliant per EU directive 2002/95/EC, the cable carries multiple safety certifications including TUV and UL recognition. Its operating temperature range of 0-70°C (32-158°F) accommodates typical data center environments and most enterprise installations. **Key Benefits:** As a direct replacement for OEM part E100G-QSFP-QSFP-P-0201, this cable provides reliable connectivity at a fraction of active alternative costs. The passive design requires no power consumption, ideal for power-efficient networks. The durable copper construction with plastic jacketing ensures long-term reliability and durability. **Compatibility & Applications:** Specifically engineered for Ruckus networking equipment, this cable excels in data center interconnects, server-to-switch connections, and switch-to-switch networking. Perfect for organizations building or upgrading to 100GB infrastructure. **Warranty & Support:** Backed by a 90-day limited warranty, with free standard shipping on orders exceeding $99. Custom brand programming is available for bulk orders. Ships from convenient U.S. locations including Danville, CA and Beaufort, SC.