The JBX05195 1-meter 40GBASE-CR4 QSFP+ to 4x SFP+ breakout Direct Attach Copper cable represents a cost-effective, high-performance solution for modern data center networking infrastructure. This passive breakout DAC cable eliminates the need for expensive active transceivers while maintaining full 40Gbps connectivity across multiple SFP+ ports. **Technical Specifications:** Designed to IEEE 802.3ba and SFF-8436 standards, this cable delivers reliable signal transmission for 40 Gigabit Ethernet applications. The 30AWG twinax copper construction provides optimal signal integrity with minimal impedance variation. At just 1 meter in length, the cable is ideal for short-reach data center connections between switches, servers, and storage systems. **Performance & Reliability:** As a passive breakout solution, this cable requires no external power or active components, reducing deployment complexity and potential points of failure. The copper connectors feature gold plating for enhanced durability and consistent electrical performance over extended use cycles. Operating temperature range of 0-70°C (32-158°F) ensures compatibility with standard and elevated-temperature data center environments. **Compliance & Safety:** Fully RoHS and ELV compliant per EU Directive 2002/95/EC, with TUV and UL safety certifications. These credentials ensure the cable meets stringent environmental and safety standards required by enterprise IT departments and telecommunications providers. **Compatibility & Integration:** Direct replacement for Extreme Networks 40G-DACP-QSFP4SFP1M and equivalent OEM part numbers. Compatible with Extreme Networks switches and equipment requiring breakout connectivity from single 40G QSFP+ ports to multiple 10G SFP+ ports. **Shipping & Support:** Qualifies for free standard shipping on orders exceeding $99. Ships from strategic US locations (Danville, CA and Beaufort, SC) for rapid delivery. Includes 90-day limited warranty covering manufacturing defects and performance issues. **Ideal Applications:** Perfect for hyperscale data centers, cloud infrastructure, enterprise switching, storage networking, and high-performance computing clusters requiring flexible 40G-to-4x10G port conversion with minimal latency.