The JBX05815 0.5m Dell Compatible 100GBASE-CR4 QSFP28 Passive Direct Attach Copper Cable represents premium connectivity for high-speed data center networks. This purpose-built twinax cable connects directly between QSFP28-enabled switches, servers, and storage devices without requiring active electronics or external power supplies. **Key Features & Specifications:** Designed with 30AWG copper conductors and plastic jacketing, this passive DAC cable delivers 100GB data rates with minimal latency. At just 0.5 meters, it's ideal for short-run connections typical in rack-mounted environments. The compact 12x12x2mm dimensions ensure easy routing through cable management systems. IEEE 802.3bj qualification guarantees interoperability across standards-compliant equipment. **Dell Compatibility:** This cable directly replaces Dell OEM part numbers 02-SSC-5814-0.5M, 470-ABOU, and 470-ABPW, making it a cost-effective upgrade path for existing Dell infrastructure. Full compatibility with Dell's 100GB network architecture eliminates integration concerns. **Environmental & Safety Compliance:** RoHS and EU directive 2002/95/EC certified, ensuring compliance with environmental regulations. TUV and UL safety certifications provide confidence in reliability and electrical safety standards. **Performance Advantages:** Passive design eliminates heat generation, reducing cooling costs in data centers. No power consumption means lower operational expenses compared to active cables. Superior shielding in twinax construction minimizes electromagnetic interference for pristine signal quality. **Operating Specifications:** Rated for 0-70°C operating temperature range, accommodating most data center environments. 90-day limited warranty backs your investment. Ships from Danville, CA or Beaufort, SC with free standard shipping on orders over $99. **Ideal Applications:** Perfect for enterprise data centers, HPC clusters, financial trading systems, cloud infrastructure, and virtualization environments requiring high-bandwidth, low-latency connections. Custom brand programming available for OEM partners and resellers seeking white-label solutions.