Keep high-density network links simple with a passive direct-attach copper cable designed for short-reach connectivity between compatible SFPDD ports. The 3 m length gives you enough reach for adjacent racks or closely spaced equipment while avoiding the cost and power overhead of optical transceivers. This cable is built for environments where link stability, low latency, and straightforward deployment matter more than distance. Passive DAC construction means no external power and no active electronics in the cable assembly, which helps reduce points of failure in tightly packed infrastructure. For teams standardizing on copper interconnects inside the rack or across nearby racks, this model offers a clean way to preserve port density and keep cabling predictable. It is a strong fit when you need dependable short-run connectivity and want to avoid overbuying optics for links that do not require them.