Direct Attach Copper (DAC) Cable CBO CPAC-DAC-100G-1M — 100G, 1 m

CBO CPAC-DAC-100G-1M is a Direct Attach Copper (DAC) cable engineered for 100G Ethernet links with a 1 metre cable length. It provides a direct electrical connection between compatible switches, routers or network interface cards (NICs) and is intended for short-reach applications in data centres and network racks. The cable supports 100 Gigabit speed while delivering low latency and reduced power consumption compared with optical transceivers for equivalent short-distance connections.

Advantages

The DAC cable offers a cost-effective physical interconnect for 100G environments, combining low insertion loss and stable performance over short distances. Its fixed 1 m length reduces clutter in dense rack deployments and simplifies cable management. The copper construction avoids the need for separate optical transceivers, lowering overall port cost and power draw while maintaining full 100 Gigabit throughput and predictable latency characteristics.

Suitable for

• Short-reach data centre patching between adjacent racks or within top-of-rack (ToR) setups
• Server-to-switch or switch-to-switch interconnects in spine–leaf topologies
• High-throughput links for aggregation and top-of-rack uplinks where 1 m length is sufficient

Key specifications

• Interface type: Direct attach copper electrical connection for 100 Gigabit Ethernet
• Nominal data rate: 100 Gbps
• Length: 1 metre
• Cable medium: Copper twinax assembly suitable for short distances
• Latency: low, suitable for latency-sensitive applications within short reach
• Power: passive copper solution with lower power consumption than equivalent optical links

How to use

Install the DAC cable by inserting each end into the corresponding 100G-capable ports on your switches, routers or NICs until the connector latches engage. Ensure both devices support direct attach copper connections at 100 Gigabit rates and that port configurations (speed, lane mapping, and firmware compatibility) are set accordingly. Route the 1 m cable to avoid excessive bending and to keep it clear of fans or hot components; the short fixed length is intended for tidy connections between adjacent ports or devices in the same rack.

Recommendations

Verify compatibility with your equipment vendor’s supported DAC modules and check port firmware or driver notes before deployment. Use the 1 m length for short links only; for longer runs, select appropriate optical transceivers or longer passive/active copper assemblies. Handle connectors by their housings to avoid strain on contacts and keep connectors dust-free when not in use.