The JBX05112 2-meter 400GBASE-CR8 QSFP-DD Direct Attach Copper Cable represents a professional-grade solution for organizations requiring high-speed, reliable network connectivity in modern data centers. As a direct replacement for Juniper's QDD-400G-DAC-2M, this passive DAC cable delivers exceptional value without compromising on performance or durability. Technical Excellence and Performance Constructed with premium copper conductors and 28AWG gauge twinax design, this cable achieves the full 400Gbps data rate specified by the 400GBASE-CR8 standard. The passive architecture eliminates power requirements and heat generation, reducing operational complexity while lowering total cost of ownership. The cable qualifies to ETC 400GBASE-CR8 specifications and QSFP-DD MSA standards, ensuring compatibility with current and future network equipment. Seamless Integration The QSFP-DD connector form factor provides direct compatibility with the latest generation of network switches, routers, and transceivers from Juniper and other leading manufacturers. The compact 2-meter length accommodates typical rack-to-rack and switch-to-switch connections without excess cabling clutter. Its 12x12x2 dimensional profile integrates cleanly into standard data center architectures. Reliability and Compliance Operating across the 0-70°C temperature range, this cable maintains consistent performance in various deployment environments. RoHS and TUV certifications confirm compliance with EU directive 2002/95/EC and international safety standards. The plastic jacketing provides durability against physical stress while protecting against environmental contaminants. Value Proposition Passive DAC technology eliminates the complexity and expense of active optical solutions while delivering comparable performance for short-reach applications. Manufactured in Vietnam and China with rigorous quality control, this cable represents enterprise-grade reliability at competitive pricing. All units include a 90-day limited warranty and qualify for free standard shipping on orders exceeding $99. Applications Ideal for: High-performance data centers, cloud computing infrastructure, HPC clusters, storage area networks (SANs), and enterprise switching environments requiring 400Gbps interconnectivity.