Move 40 GbE traffic across short distances with a direct attach cable designed for practical data center use. The QSFP-40G-PDAC50CM-AO connects compatible QSFP+ ports using passive copper, giving infrastructure teams a simple way to build short-reach links without adding optical modules at both ends. That simplicity matters in high-density racks. Passive DAC cabling reduces the number of parts to source, install, and track, while helping keep cable runs tidy in environments where airflow and serviceability are always under pressure. For teams standardizing short 40 GbE interconnects, the result is a cleaner deployment model with fewer variables. TAA compliance adds procurement value for organizations that need sourcing alignment for public sector or regulated environments. The 50 cm length is well suited to adjacent equipment connections, especially where ports sit close together and excess cable would only add clutter. This cable is a strong fit when you want dependable short-reach 40GBASE-CU connectivity with the operational discipline expected in enterprise infrastructure. It is built for teams that prefer direct, predictable cabling over unnecessary optical complexity.