The JBX05616 is an enterprise-grade 100GBASE-CR4 QSFP28 to 4x SFP28 passive breakout Direct Attach Copper cable, engineered for demanding data center and network infrastructure applications. This 0.5-meter cable serves as a direct replacement for the Intel XXV4DACBL0-5M, offering identical performance and compatibility at a competitive price point. **Technical Specifications:** This passive breakout DAC cable utilizes 30AWG twinax copper construction with protective plastic jacketing, delivering optimal signal integrity for 100GB Ethernet transmissions. The QSFP28 connector interfaces with a single 100GB port, while the four SFP28 connectors enable parallel connectivity to four separate 25GB ports, providing flexible port configurations for mixed-speed network topologies. **Compliance & Standards:** Fully qualified to IEEE 802.3bj specifications and QSFP28 MSA standards, the cable meets all regulatory requirements including RoHS (EU Directive 2002/95/EC), TUV, and UL certifications. These qualifications ensure compatibility with major networking vendors and enterprise equipment. **Performance & Applications:** The passive design eliminates power consumption and potential failure points associated with active components, making it ideal for cost-sensitive deployments. The compact 0.5m length is perfect for short-reach interconnections within server racks, ToR switches, and modular networking environments. Operating reliably between 0 to 70°C, this cable supports continuous operation in data centers with standard cooling infrastructure. **Key Advantages:** As a passive solution, this breakout cable requires no external power, reducing operational costs and complexity. The Intel compatibility ensures seamless integration with existing infrastructure. Custom brand programming is available for OEM and enterprise customers. Backed by a 90-day limited warranty, this cable provides peace-of-mind protection. **Use Cases:** Ideally suited for hyperscale data centers, cloud computing platforms, high-frequency trading facilities, and enterprise campus networks requiring high-speed, cost-effective interconnection solutions. The breakout configuration is particularly valuable for architectures transitioning between 100GB and 25GB port densities. **Shipping & Support:** With free standard shipping on orders over $99 and availability from US locations (Danville, CA and Beaufort, SC), this cable offers both affordability and convenience for rapid deployment.