The JBX05597 3-meter 100G QSFP28 to SFP28 passive breakout DAC cable represents a cost-effective solution for enterprise and data center network infrastructure requiring high-speed, low-latency connectivity. This specialized cable is engineered to Extreme Networks specifications and fully compatible with their 100GBASE-CR4 networking equipment. **Technical Specifications:** This direct attach copper (DAC) cable features 28AWG twinax construction with professional-grade copper connectors designed to facilitate reliable signal transmission at 100GB speeds. The QSFP28 to 4x SFP28 configuration enables flexible breakout connectivity, allowing a single 100G port to connect to four separate 25G devices. The cable meets all IEEE 802.3bj specifications for 100GBASE-CR4 applications. **Compliance & Certifications:** Fullly RoHS and ELV compliant, this cable meets EU directive 2002/95/EC requirements, ensuring environmental responsibility. TUV and UL safety certifications provide additional assurance of quality and reliability. Manufacturing locations in Vietnam and China ensure consistent, high-quality production standards. **Performance Advantages:** Passive DAC technology eliminates active electronics, reducing power consumption and heat generation while maintaining superior signal integrity. The 3-meter length accommodates typical rack-to-rack deployments within data centers without signal degradation. Operating temperature range of 0-70°C ensures reliable performance across standard data center environments. **Use Cases & Applications:** Ideal for hyperscale data centers, enterprise network upgrades, and high-performance computing environments. The Extreme Networks compatibility makes this cable perfect for organizations standardizing on Extreme infrastructure. Suitable for short-reach, high-density interconnects where passive solutions provide optimal performance-to-cost ratios. **Compatibility:** Directly compatible with Extreme Networks 100G equipment, replacing OEM part numbers 100G-DACP-QSFP4SFP3M, 10423, and 100G-QSFP-4SFP-P-0301. Custom brand programming is available for organizations requiring rebranding options. **Warranty & Support:** 90-day limited warranty provides confidence in product reliability. Free standard shipping on orders exceeding $99, with convenient shipping from Danville, CA and Beaufort, SC distribution centers.