Juniper QDD-400G-DAC-2P5M QSFP56-DD 400G DAC 2.5M | Data Center

Keep high-speed links close to the hardware with the Juniper QDD-400G-DAC-2P5M direct attach cable. Designed for QSFP56-DD 400G connectivity, this 2.5 m copper cable is suited to short-reach interconnects inside dense racks and adjacent equipment rows where optical transceivers are unnecessary. Direct attach copper remains a strong fit for short-distance 400G deployments because it reduces complexity at the port level while preserving the performance profile needed for modern switching and aggregation layers. For infrastructure teams, that means fewer components to source, fewer optics to manage, and a cleaner path to predictable deployment costs. At 2.5 m, this cable gives you enough reach for practical rack-to-rack or within-rack routing without introducing the overhead of longer optical runs. It is the kind of cable that belongs in a well-planned data center bill of materials: specific, efficient, and aligned to the physical realities of the installation. Choose this Juniper DAC when you need a verified 400G copper link for short-reach connectivity and want the simplicity of a direct attach design matched to the port standard.