BlueOptics compatible NVIDIA MCP1600-C003LZ Direct Attach Cable 100GBASE-CR4 Ethernet 26AWG 3m

BlueOptics compatible NVIDIA MCP1600-C003LZ Direct Attach Cable 100GBASE-CR4 Ethernet 26AWG 3m is a short-reach copper interconnect designed for 100 Gbit/s links in data centre environments. The cable implements a 26AWG twinax construction and a fixed 3-metre length to deliver low-latency connections between servers, switches or modules supporting 100GBASE-CR4. It is presented as a direct attach copper solution compatible with hosts and switches that accept the NVIDIA MCP1600-C003LZ form factor and electrical characteristics.

Advantages

This direct attach cable provides a cost-effective, low-power alternative to optical transceivers for short-distance 100G links. Its 26AWG copper conductors are optimized for signal integrity at 100 Gbit/s rates across a 3 m span, while the fixed-length twinax assembly reduces the need for separate transceivers and fibre patching. The cable supports high-density deployments in racks and reduces component count and operational complexity for in-rack connections.

Suitable for

• Server-to-switch connections in top-of-rack and middle-of-row setups
• Switch-to-switch short-reach links within the same rack or adjacent racks
• Direct module interconnects in high-density network equipment

Key specifications

• Standard: 100GBASE-CR4 copper direct attach
• Data rate: 100 Gbit/s aggregate
• Conductor type and gauge: 26 AWG twinax copper
• Length: 3 metres (fixed)
• Connector type: Direct attach copper (DAC) plug ends compatible with the specified form factor
• Intended use: Short-reach, in-rack or adjacent-rack interconnects

How to use

Install the cable by inserting each plug into the corresponding 100GBASE-CR4 compliant port on the server, switch or module until it latches. Ensure both ends are properly seated and that the cable routing avoids sharp bends or excessive tension. No separate transceivers are required; the cable provides a direct electrical interface. Verify link status through the network equipment management interface and confirm negotiated speed and lane configuration.

Usage recommendations

For reliable performance, maintain the minimum bend radius specified by the manufacturer, keep the cable clear of heat sources and ensure proper airflow in the rack. Use this 3 m DAC for short-reach connections only; for longer distances consider optical fibre solutions. Confirm compatibility with your switch or host firmware and port specifications prior to deployment.