The JBX05780 3m 100GBASE-CR4 QSFP28 Passive Direct Attach Copper Cable represents a cost-effective, power-efficient solution for high-bandwidth network interconnections. As a passive DAC solution, it requires no external power or active electronics, making it an ideal choice for data center operators seeking to reduce power consumption and infrastructure complexity. **Technical Specifications:** This professional-grade cable features 28AWG twinax copper construction with durable plastic jacketing, delivering reliable 100 Gigabit Ethernet performance. The dual QSFP28 connectors ensure secure, tool-free connections compatible with Arista networking equipment. The 3-meter length is optimized for typical data center rack spacing and cabinet-to-cabinet deployments. **Performance & Compliance:** Fully qualified to IEEE 802.3bj specifications and QSFP28 Multi-Source Agreement standards, this cable guarantees exceptional signal integrity and data transmission reliability. RoHS and TUV certifications confirm environmental compliance and safety standards compliance across regulated industries. **Application Scenarios:** Ideal for data center core switching, high-speed interconnects between network equipment, storage area network (SAN) implementations, and enterprise campus networks requiring 100 Gigabit connectivity. The passive design makes it particularly suitable for latency-sensitive applications where minimal signal degradation is critical. **Operational Advantages:** - Zero power consumption compared to active solutions - Direct copper transmission eliminates optical conversion costs - Compact form factor simplifies cable management - Operating temperature range of 0-70°C accommodates diverse environments - RoHS/ELV certified for environmental responsibility **Warranty & Support:** Backed by a 90-day limited warranty and available with custom brand programming options for enterprise deployments. Ships from convenient US locations with free standard shipping on orders over $99. This cable directly replaces OEM part CAB-Q-Q-100G-3M, providing cost-effective compatibility.