800G QSFP-DD Direct Attach Copper Cable, 800G Copper DAC, 800G QSFP-DD DAC

The 800G QSFP-DD Direct Attach Copper Cable is designed for short-distance 800G Ethernet connectivity in high-density data center environments. This 800G Copper DAC delivers low-latency, power-efficient interconnects between switches, routers, and servers, supporting aggregated bandwidth up to 800G over passive twinax copper for rack-level and adjacent rack deployments.

800G QSFP-DD Direct Attach Copper Cable Features & Applications

The 800G QSFP-DD Direct Attach Copper Cable supports short-reach direct attach copper connectivity for high-density Ethernet links up to 800 Gbps. Designed for stable signal integrity, it is deployed in data center switches, servers, and enterprise networking platforms that require consistent, low-latency copper interconnects.

Technical Characteristics

• Passive twinax copper construction
• QSFP-DD pluggable interfaces supporting 800G Ethernet
• Optimized for short-distance rack-level interconnects
• Low power consumption compared to optical modules
• RoHS compliant construction
• Available in multiple cable lengths

Typical Applications

• Switch-to-switch connectivity within the same rack
• Switch-to-server 800G uplinks
• Spine-leaf data center architectures
• High-performance computing clusters
• AI and machine learning networking infrastructure

Electrical Performance and Signal Integrity

The 800G QSFP-DD DAC is engineered with controlled impedance conductors and consistent differential pair geometry to maintain signal integrity at 800G data rates. Its passive design ensures predictable latency and electrical behavior within supported cable lengths. Proper routing and adherence to recommended bend radius guidelines help preserve insertion loss margins and minimize crosstalk in dense installations.

Compatibility Considerations

This 800G Copper DAC is intended for equipment supporting QSFP-DD 800G Ethernet interfaces. Port compatibility depends on switch hardware design and firmware configuration. Always verify platform support for passive 800G DAC assemblies and confirm maximum supported cable length based on wire gauge and system specifications.

FAQ (Frequently Asked Questions)

What is the primary use of the 800G QSFP-DD Direct Attach Copper Cable?

It is used for short-distance 800G Ethernet connections between switches and servers in high-density data center environments.

Does the 800G Copper DAC require external power?

No. As a passive direct attach copper cable, it does not require separate power or active signal conditioning components.

What distances are supported by this 800G QSFP-DD DAC?

It is designed for short-reach deployments, typically within the same rack. Supported distance depends on cable length and system specifications.

Can this cable support breakout configurations?

Breakout capability depends on the switch platform and firmware. Some 800G ports allow breakout when properly configured.