Cisco QDD-400-AOC1M 400G QSFP-DD Active Optical Cable, 1 m | Fiber Optic — QDD-400-AOC1M

Use this 1 m Cisco QSFP-DD active optical cable when 400G devices sit close together and you want the cleanest possible interconnect. The short length is ideal for adjacent equipment in the same rack or between neighboring components where excess cable would only add clutter and restrict airflow. By integrating the optical path into the cable assembly, it removes the need for separate transceivers and patch cords at both ends. For infrastructure teams building dense 400G fabrics, short AOC runs can simplify installation and improve day-two operations. Less slack means easier labeling, cleaner service loops, and fewer obstructions around high-value ports. That matters in environments where every inch of rack space is planned and every cable path must stay serviceable. Cisco’s QSFP-DD format keeps the cable aligned with modern 400G switching and server platforms. It is a practical choice when you need a short-reach optical link that looks as disciplined as the network it supports. Ideal For Adjacent switch-to-switch 400G links in the same rack Server-to-top-of-rack 400G connections with minimal slack Dense leaf-spine deployments where cable management is critical Short optical runs in lab or staging environments using QSFP-DD ports Why This Product 1 Short 1 m reach reduces slack in dense racks 2 Lower cable clutter than longer optical runs 3 Integrated optics simplify short 400G links 4 Cisco-branded option for adjacent-device interconnects