The JBX06358 4m Arista Compatible 25GBASE-CR SFP28 Passive Direct Attach Copper Cable represents a cutting-edge networking solution designed for organizations demanding high-speed, reliable data transmission. This premium interconnect cable delivers exceptional performance in modern data center environments where 25 Gigabit Ethernet connectivity is essential. **Key Features & Specifications:** This passive DAC cable utilizes high-quality copper construction with 26AWG twinax shielding, ensuring signal integrity and minimal latency. The SFP28 form factor connectors provide secure, industry-standard connections without requiring additional power supplies—a distinct advantage of passive technology. Operating across temperatures from 0°C to 70°C (32°F to 158°F), it maintains consistent performance in demanding environments. **Compliance & Standards:** Fully qualified to IEEE 802.3by specifications and compliant with SFF-8402 and SFF-8472 standards, this cable guarantees interoperability across certified networking equipment. RoHS and EU directive 2002/95/EC compliance ensures environmental responsibility. Backed by comprehensive safety certifications (RoHS, TUV, UL), it meets the highest industry standards. **Arista Compatibility:** Purpose-built for Arista switches and networking infrastructure, this cable directly replaces OEM part CAB-S-S-25G-4M, making upgrades and replacements seamless. The 4-meter length provides optimal flexibility for typical rack configurations and cross-cabinet connections. **Performance Advantages:** As a passive solution, this cable eliminates power consumption and heat generation associated with active alternatives, reducing operational costs and improving equipment longevity. The reliable 25Gb/s data rate supports bandwidth-intensive applications including cloud computing, virtualization, and high-performance computing. **Shipping & Support:** Shipped from multiple U.S. locations (Danville, CA and Beaufort, SC) for faster delivery. Qualified for free standard shipping on orders exceeding $99. Includes 90-day limited warranty. Custom brand programming available for enterprise deployments. Invest in proven, standards-compliant network infrastructure with this essential data center connectivity solution.