The JBX05248 7-meter 40GBASE-CR4 QSFP+ passive direct attach copper cable is a mission-critical component for modern high-speed data center networks. Engineered with precision to meet demanding enterprise requirements, this cable delivers exceptional performance for applications requiring reliable 40GB connectivity. **Superior Construction & Materials** Manufactured with premium copper conductors and protected by durable plastic jacketing, the 26AWG twinax design minimizes signal loss and crosstalk. The robust construction ensures durability in high-density switch environments while maintaining optimal signal integrity across the full 7-meter span. **Cisco Compatibility & Standardization** Designed as a drop-in replacement for Cisco OEM part numbers QSFP-H40G-CU7M and MA-CBL-40G-7M, this cable provides seamless integration into existing Cisco infrastructure. Qualified to IEEE 802.3ba and SFF-8436 specifications, it guarantees compatibility and performance standards recognized industry-wide. **Passive Technology Benefits** Unlike active cables, this passive DAC requires no external power, reducing heat generation and operational complexity. This makes it ideal for densely populated switch environments where power management and thermal considerations are critical. Lower total cost of ownership combined with exceptional reliability makes this an excellent choice for scalable deployments. **Compliance & Safety** Full RoHS/ELV compliance with TUV and UL certifications ensures adherence to international safety and environmental standards. Manufactured in Vietnam and China, this cable meets stringent quality control requirements. Operating reliably across 0-70°C temperature ranges, it performs consistently in various data center climates. **Practical Applications** Ideal for connecting top-of-rack (ToR) switches to end-of-row (EoR) infrastructure, server-to-switch connections, and storage array integration. Perfect for high-frequency trading environments, cloud providers, and enterprises requiring deterministic low-latency communications. **Warranty & Support** Backed by a comprehensive 90-day limited warranty, with convenient shipping from California and South Carolina locations. Custom brand programming available for OEM partners and volume purchases.