Juniper QSFP+ 40GE DAC 1M QFX-QSFP-DAC-1M | Direct Attach Cable

Keep high-speed links tight, predictable, and economical inside the rack. The Juniper QFX-QSFP-DAC-1M is a 1 m QSFP+ direct attach copper cable designed for 40 GbE connections over very short distances. It is a practical choice for top-of-rack and adjacent-device interconnects where optical transceivers would add unnecessary expense, power consumption, and management overhead. For infrastructure teams building dense switching fabrics, DAC cabling simplifies deployment. The integrated copper assembly reduces the number of separate components to source, install, and support, while preserving the throughput expected from a 40 GbE link. That makes it well suited for environments where port density, cable management, and predictable short-reach performance matter more than long-distance flexibility. This cable is especially useful in racks where equipment sits side by side or in neighboring cabinets. The 1 m length helps keep runs clean and controlled, supporting airflow and serviceability in tightly packed systems. When you need a direct, purpose-built connection for Juniper hardware, this cable delivers the right balance of speed, simplicity, and cost discipline.