The JBX06509 3m Ruckus Compatible 25GBASE-CR SFP28 Passive Direct Attach Copper Cable represents a cost-effective, high-performance solution for modern data center and enterprise networking applications. Engineered to meet IEEE 802.3by specifications, this twinax cable delivers industry-leading 25Gbps data rates with exceptional reliability. **Technical Specifications:** This passive DAC cable features 30AWG gauge twinax copper construction with SFP28-to-SFP28 connectors, providing a compact 3-meter connection between compatible network equipment. The cable measures 12x12x3mm and operates reliably across temperatures from 0°C to 70°C (32°F to 158°F), making it suitable for both standard and temperature-controlled data center environments. **Performance & Compatibility:** Qualified to IEEE 802.3by and SFF-8402/SFF-8472 standards, this cable ensures seamless integration with Ruckus networking infrastructure and compatible third-party equipment. It directly replaces OEM part number E25G-SFP28-TWX-P-0301, providing a reliable alternative for network upgrades and replacements. **Advantages of Passive DAC Technology:** Unlike active cables, this passive solution requires no power consumption, reducing heat generation and operational costs. The copper twinax design minimizes signal degradation, ensuring consistent 25Gbps performance over the 3-meter distance. This makes it an excellent choice for server-to-switch and switch-to-switch interconnections in densely populated data centers. **Quality & Compliance:** Fully RoHS and ELV compliant with TUV and UL certifications, this cable meets stringent environmental and safety standards. The robust plastic jacketing provides protection against physical damage and electromagnetic interference, extending cable lifespan in challenging environments. **Support & Warranty:** Backed by a 90-day limited warranty and featuring custom brand programming options, this cable offers flexibility for enterprise deployments. Ships from multiple US locations with free standard shipping on orders exceeding $99, ensuring quick delivery and reduced procurement costs. Ideal for IT professionals, data center managers, and network engineers seeking reliable 25Gbps connectivity at competitive pricing.