Keep high-speed links short, predictable, and easy to service with this AddOn Networks passive direct attach cable. Built for Dell-compatible deployments, it connects a QSFP28 port to four SFP28 endpoints over 2.5 m, giving infrastructure teams a clean way to extend 100 GbE connectivity between adjacent racks or closely placed systems. Passive DAC design avoids the cost and power draw of active optics while preserving the direct electrical path preferred in many top-of-rack and leaf-spine environments. That makes it a practical choice when you need dependable throughput without adding transceiver complexity. The breakout format is especially useful for consolidating uplinks, staging mixed-speed transitions, or connecting servers and switches that require 4 x 25 GbE fan-out from a single 100 GbE port. TAA compliance supports government and regulated enterprise purchasing requirements, while Dell compatibility helps reduce qualification risk in mixed-vendor data centers. For teams standardizing on dense, short-reach copper interconnects, this cable delivers the right balance of simplicity, performance, and procurement confidence.