Juniper QDD-8X50G-1M 400G DAC Breakout 1 m | QSFP-DD, 8x50G

Consolidate high-speed connectivity without adding optical complexity. Juniper’s QDD-8X50G-1M breaks a single 400G interface into 8 x 50G lanes over a 1 m direct attach copper assembly, giving infrastructure teams a clean way to fan out capacity where short-reach connections are enough. This cable is built for environments that need dense port utilization, predictable latency, and straightforward cable management inside the rack. By staying in copper and keeping the run to 1 m, it helps reduce cost and power overhead compared with optical alternatives while preserving the bandwidth needed for modern aggregation and switching designs. Use it where switch adjacency is tight and every rack unit matters. The breakout format supports high-density architectures that depend on precise port planning, especially in leaf-spine fabrics, staging rows, and equipment clusters where short, fixed-length interconnects are preferred. For teams standardizing on Juniper infrastructure, this DAC breakout offers a purpose-built path to connect 400G-capable hardware to multiple 50G endpoints with minimal signal path complexity.