Dell QSFP28 100GbE 5m Network Cable – Passive DAC for Enterprise and Data Center Infrastructure

The Dell Networking 100GbE QSFP28 DAC is a 5-meter passive copper direct-attach cable designed for high-speed interconnects between switches, servers, and storage systems in data center environments. Commonly deployed for inter-rack links and top-of-rack connections in spine-leaf topologies, the cable delivers 100 Gigabit Ethernet throughput at minimal latency without active optical components or separate transceivers.

The passive copper construction eliminates the power consumption associated with active optical modules, reducing the total cost per port in installations where distances do not exceed 5 meters — the standard range for intra-datacenter and adjacent rack connections. Integrated QSFP28 connectors provide compatibility with 100GbE QSFP28 ports on Dell PowerEdge servers and Dell Networking switches, as well as third-party equipment from Cisco, Arista, Mellanox, and other vendors conforming to IEEE 802.3bj. The absence of discrete transceivers simplifies spare parts inventory and reduces failure points in high port-density deployments.

The passive DAC operates without supplemental power and without signal conversion latency — a direct advantage over AOC solutions in scenarios where cable runs remain within the technical limits of passive copper. Mechanically locking connectors prevent accidental disconnection in high cable-density environments with moderate vibration. Dell Networking validation ensures full technical support and guaranteed interoperability in end-to-end Dell infrastructure deployments.

Recommended for spine-leaf interconnects, server-to-switch top-of-rack links, SAN/NAS storage-to-aggregation switch connections, and bandwidth capacity expansion in existing racks without investment in optical infrastructure. Well suited for enterprise data centers, colocation facilities, and HPC environments where cost per Gbps and operational simplicity are primary selection criteria.