The JBX05220 3-meter Cisco QSFP+ to SFP+ breakout DAC cable represents a cost-effective, high-performance solution for modern data center architectures. This passive direct attach copper cable eliminates the need for active transceivers, reducing power consumption and heat generation while maintaining exceptional signal integrity across all four channels. Technical Excellence: Built to IEEE 802.3ba specifications, this breakout cable supports 40GBASE-CR4 transmission standards, delivering 10Gbps per channel across four SFP+ connections. The 30AWG twinax construction provides optimal impedance matching and electromagnetic shielding, ensuring consistent performance in high-density networking environments. With operating temperatures ranging from 0-70°C (32-158°F), the cable performs reliably in both controlled data center climates and more variable deployment scenarios. Compliance & Safety: This cable meets rigorous international standards including RoHS (2002/95/EC directive) and ELV compliance, along with TUV and UL safety certifications. These credentials ensure safe operation in enterprise-grade installations while supporting corporate sustainability initiatives. Seamless Integration: Direct replacement for Cisco part number QSFP-4SFP10G-CU3M, this cable integrates effortlessly into existing Cisco infrastructure without compatibility concerns. The QSFP+ male connector breakout design allows a single 40Gbps QSFP+ port to serve four independent 10Gbps SFP+ connections, maximizing port efficiency. Ideal Applications: Perfect for data center switch-to-switch connections, storage array interconnects, and high-speed compute cluster deployments. IT professionals, network administrators, and data center operators benefit from this cable's reliability, compliance certifications, and Cisco compatibility. Value Proposition: Compared to active optical cables, this passive DAC solution reduces operational costs while delivering identical performance. The 3-meter length accommodates typical rack-to-rack distances in standard data center layouts. Custom brand programming is available for organizations requiring private labeling. Backed by a 90-day limited warranty and eligible for free standard shipping on qualifying orders, this cable represents an excellent investment in network infrastructure reliability.