When the link is short and the rack is dense, a passive DAC cable is often the most efficient path. This AddOn 10GBASE-CU SFP+ to SFP+ cable is designed for HP 487652-B21 to Dell 330-3965 compatibility, giving teams a direct copper connection for 10 Gigabit Ethernet without the added cost and complexity of separate optical modules. The 1 m length is ideal for adjacent equipment, top-of-rack switching, and other short copper runs where excess slack creates clutter. By using a passive twinax design, the cable helps reduce power draw and simplifies spares planning. That matters in environments where every port, watt, and procurement line item is tracked closely. TAA compliance makes this model a practical fit for public-sector and regulated deployments that require sourcing discipline. For infrastructure teams standardizing mixed-vendor connectivity, this cable offers a straightforward way to keep 10 GbE links stable while avoiding unnecessary components. It is a focused, cost-aware choice for short-reach network design.