The JBX05105 1.5m 400GBASE-CR8 QSFP-DD Direct Attach Copper Cable represents a cost-effective, high-performance solution for modern data center and enterprise networking environments demanding reliable 400GB connectivity. **Product Overview** This passive direct attach copper (DAC) cable eliminates the need for active components or external power supplies, making it an economical choice for short-range interconnections. The 1.5-meter length provides optimal flexibility for typical rack and switch configurations without introducing unnecessary latency or signal degradation. **Technical Specifications** Constructed with 28AWG copper conductors and durable plastic jacketing, the cable delivers consistent performance across demanding network environments. The QSFP-DD form factor connectors ensure compatibility with industry-standard networking equipment. Operating across temperatures from 0°C to 70°C (32°F to 158°F), this cable maintains performance stability in various climate-controlled data center conditions. **Compliance & Certification** Fully RoHS and ELV compliant, the cable adheres to EU directive 2002/95/EC standards. TUV and UL safety certifications confirm adherence to rigorous quality and safety protocols. The cable is qualified to ETC 400GBASE-CR8 specifications and QSFP-DD MSA and CMIS standards, ensuring compatibility with current and emerging network infrastructure. **NVIDIA Mellanox Compatibility** Designed specifically to replace NVIDIA Mellanox OEM part numbers 980-9I35S-00W01A and MCP1660-W01AE30, this cable ensures seamless integration into existing Mellanox-based network architectures. It supports 400GBASE-CR8 transmission standards for reliable data transmission. **Use Cases** Ideal for data centers, high-performance computing clusters, enterprise networks, and cloud infrastructure environments requiring cost-effective 400GB interconnectivity. The passive design eliminates power consumption concerns, making it environmentally efficient. **Warranty & Support** Backed by a 90-day limited warranty, with free standard shipping on orders exceeding $99. Ships from strategically located U.S. facilities (Danville, CA and Beaufort, SC) for rapid delivery. Custom brand programming is available for enterprise customers requiring specialized configurations.