Built for short-reach 40 GbE interconnects, the AddOn 40GB-C01-QSFP-AO direct-attach copper cable gives infrastructure teams a simple way to connect QSFP+ ports without separate optics. At 1 m, it is well suited to same-rack deployments where signal path control, cable discipline, and predictable performance are more important than reach. Direct-attach copper is often the most efficient choice when switches, servers, and storage arrays sit close together. It removes the need for transceivers on both ends, which helps reduce power consumption, heat, and bill of materials while keeping deployment straightforward. For dense environments, that translates into cleaner cable management and fewer points of failure. This cable is a practical fit for leaf-spine fabrics, top-of-rack switching, and high-density compute clusters that need 40 GbE connectivity in a compact footprint. If your design calls for a short, fixed-length copper link between QSFP+ ports, this AddOn DAC delivers the right balance of simplicity, performance, and cost control.