The JBX05782 3-meter 100GBASE-CR4 QSFP28 Passive Direct Attach Copper Cable represents an exceptional value for enterprises seeking reliable, cost-effective 100Gbps connectivity. Manufactured with premium materials and precision engineering, this passive DAC cable delivers outstanding performance without the operational overhead of active alternatives. **Key Features & Specifications:** - Cable Length: 3 meters (optimal for rack-to-rack and short-haul applications) - Data Rate: 100Gbps (100GBASE-CR4) - Connector Type: QSFP28-to-QSFP28 (copper connectors) - Cable Gauge: 28AWG twinax with plastic jacketing - Form Factor: QSFP28 MSA compliant **Performance & Compliance:** Qualified to IEEE 802.3bj specifications and SFF-8665 standards, this cable ensures compatibility with Cisco and other leading network equipment. Full RoHS/ELV compliance and safety certifications (TUV, UL) guarantee environmental responsibility and workplace safety. Operating temperature range of 0-70°C (32-158°F) accommodates diverse data center environments. **Superior Value Proposition:** Passive DAC technology eliminates power consumption and heat generation, reducing data center operating costs while maintaining exceptional signal integrity. Unlike active solutions, passive cables require no external power, reducing complexity and potential points of failure. The 3-meter length strikes an ideal balance for standard rack configurations and short-distance interconnects. **Applications & Compatibility:** Ideal for connecting top-of-rack switches to servers, storage arrays, and network appliances. Direct replacement for Cisco P/N QSFP-100G-CU3M and MA-CBL-100G-3M. Suitable for enterprises, cloud providers, telecommunications operators, and high-performance computing facilities. **Quality Assurance:** Backed by a 90-day limited warranty and manufactured in Vietnam and China with rigorous quality controls. Ships from US locations (Danville, CA and Beaufort, SC) with free standard shipping on orders exceeding $99. Custom brand programming available for enterprise deployments. Invest in reliable, standards-compliant connectivity that delivers consistent 100Gbps performance without premium pricing.