Breakout Cable BlueOptics 747641301 40Gb to 4×10Gb Twinaxial Copper

Breakout Cable BlueOptics 747641301 40Gb to 4×10Gb Twinaxial Copper converts a single 40 Gigabit link into four independent 10 Gigabit connections using a twinaxial copper assembly. Designed for short-reach, high-density interconnects in racks and data centers, this breakout cable provides a cable-based method to split a 40Gb channel into four 10Gb channels for server-to-switch or switch-to-switch aggregation where compatible ports are available. The cable is intended for direct-attach applications and is suitable for environments that require reliable, low-latency copper connectivity across short distances.

Advantages

The twinaxial copper construction delivers low latency and stable electrical performance for short-reach links while eliminating the need for separate transceivers. The single-assembly breakout design simplifies cabling by replacing multiple individual 10Gb cables with one consolidated link that splits at the connector end. Its form-factor compatibility supports common 40Gb and 10Gb port arrangements used in modern networking equipment, enabling efficient port utilization and simplified topology changes without active components.

Suitable for

• Aggregating a 40Gb uplink into four 10Gb server or switch ports
• High-density rack interconnects within data centers
• Short-reach direct-attach connections between compatible network devices
• Temporary or permanent breakout requirements where fiber is not required

Key specifications

• Type: 40Gb to 4×10Gb breakout twinaxial copper cable
• Topology: Single 40Gb end to four 10Gb ends (breakout)
• Media: Copper twinaxial conductors for direct-attach connections
• Reach: Short-reach applications (designed for rack- and data center-scale distances)
• Use case: Passive cable assembly for channel splitting and port breakout

How to use

Identify the 40Gb port on the switch or aggregation device and the four corresponding 10Gb ports on the target devices. Insert the 40Gb end of the breakout cable into the 40Gb port and connect each of the four 10Gb ends to the respective 10Gb ports on servers or switches. Ensure that connected devices support passive twinax breakout cabling and that port pinouts match the cable wiring. Maintain proper bend radius and secure cable routing to prevent mechanical strain and signal degradation.

Usage recommendations

Use this breakout cable for short-distance connections within racks or between adjacent racks. Verify device compatibility with passive twinax breakout assemblies before deployment, and avoid extended distances beyond the specified short-reach range. For environments requiring optical isolation or longer reach, consider optical transceivers and fiber alternatives instead of copper breakout cabling.