Direct Attach Cable BlueOptics 100GBASE-CR4 Ethernet 26AWG 3m for NVIDIA 980-9I62Z-00C003

BlueOptics passive Direct Attach Copper (DAC) cable provides a fixed 100GBASE-CR4 connection over 26AWG copper with a 3 meter length. Designed for short-reach high-speed interconnects, this 100 Gigabit Ethernet cable is compatible with systems that accept 100GBASE-CR4 DAC links and is intended for use in data centre racks and server rooms where reliable, low-latency board-to-board and chassis-to-chassis connections are required.

Advantages

The DAC construction offers low power consumption and minimal latency compared to active optical alternatives, while providing a straightforward, cost-effective solution for short-distance 100G interconnects. With 26AWG copper conductors and a 3 m length, the cable supports high-density deployment in top-of-rack and aggregation scenarios and reduces the need for transceivers and associated power draw.

Suitable for

• Short-reach 100G connections between switches and routers in racks
• Direct links from servers to network interface cards (NICs) supporting 100GBASE-CR4
• Top-of-rack and aggregation layer interconnects in data centres
• High-density installations where fixed copper connections are preferred

Key specifications

• Standard: 100GBASE-CR4 Ethernet over copper
• Cable type: Passive Direct Attach Copper (DAC)
• Conductor gauge: 26 AWG
• Length: 3 meters
• Connector type: Fixed twinax/DAC style for 100G ports (compatible with 100GBASE-CR4 systems)
• Typical use environment: Data centre racks and server rooms for short-reach links

How to use

Install the cable by inserting each end into the corresponding 100G port on switches, routers or NICs that support 100GBASE-CR4 DAC connections. Ensure both ports are powered down or follow hot-plug procedures recommended by the hardware vendor if supported. Verify link status through the network equipment management interface and confirm appropriate port configuration for 100G operation. Route the cable to avoid sharp bends and excessive strain on the connectors.

Usage recommendations

For reliable performance, use this 3 m DAC cable within short-reach connections inside racks and between adjacent equipment. Avoid extended runs beyond the specified length, minimize mechanical stress on the cable and maintain proper airflow in rack environments to prevent overheating of adjacent equipment. Confirm hardware compatibility with 100GBASE-CR4 passive DAC links before deployment.