Cisco CAB-Q100G-CU5M 100G QSFP28 Passive Direct-Attach Copper Cable 5m

The Cisco CAB-Q100G-CU5M is a passive direct-attach copper (DAC) cable designed for 100 Gigabit Ethernet connectivity over short intra-rack distances. It terminates in QSFP28 connectors on both ends, enabling native 100G connections without active signal conditioning or external power requirements. The passive architecture eliminates the complexity and thermal footprint of active optical or electronic solutions.

This cable is optimized for deployment in Nexus and Catalyst switch platforms, where it provides a cost-effective alternative to 100G QSFP28 optics for rack-local server and storage interconnections. The 5-meter length accommodates typical top-of-rack and end-of-row switch-to-server topologies in enterprise data centers.

By leveraging copper transmission over controlled distances, passive DAC cables reduce the total cost of ownership in dense 100G environments while maintaining full line-rate performance and low-latency characteristics required for enterprise workloads.

Ideal for

• Server-to-top-of-rack switch connectivity in hyperscale and enterprise data centers
• Storage array to switching fabric connections within single-rack or adjacent-rack configurations
• High-performance computing cluster interconnects requiring sub-microsecond latency
• Database replication and backup traffic between on-premise systems in the same facility
• Virtual machine migration and live vMotion traffic between servers on common fabric
• Intra-datacenter east-west traffic optimization in multi-tier application architectures

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.