CBO Direct Attach Cable HPE X240 40G QSFP to QSFP 30AWG - short-range twinax cable

The CBO Direct Attach Cable HPE X240 40G QSFP to QSFP 30AWG is a short-range twinax cable designed for high-speed interconnects between QSFP ports in switches, servers and storage systems. Compatible with HPE X240 environments, this 40G cable provides a direct copper link that eliminates the need for separate optical transceivers, offering a straightforward connection for top-of-rack and aggregation deployments in data centers.

Advantages

This short-range twinax cable delivers low latency and low power consumption compared with optical link alternatives, while providing a cost-effective solution for 40G port-to-port connections. Its 30AWG construction ensures reliable signal integrity across short distances, reduces heat generation and simplifies cable management by integrating connector and cable in a single assembly. The product is designed for easy installation and predictable performance in dense networking racks.

Suitable for

• Direct 40G QSFP-to-QSFP links between switches
• Server-to-switch uplinks in top-of-rack configurations
• High-density aggregation and spine-leaf architectures
• Short-reach connections inside data center racks

Key specifications

• Connector type: QSFP to QSFP
• Nominal data rate: 40 Gbps
• Cable construction: 30 AWG twinax copper
• Range: short-range (suitable for intra-rack connections)
• Form factor: direct attach cable (integrated connectors)
• Typical use: low-latency, high-throughput interconnects

How to use

Insert each QSFP connector into the corresponding QSFP port on the devices to be connected, ensuring the latch mechanism clicks into place. Confirm link status on both devices and verify the negotiated speed is 40G. For best results, route the cable to avoid sharp bends and mechanical stress; maintain recommended bend radius and secure the cable within the rack to prevent accidental disconnection. When removing the cable, depress the connector latch fully before pulling straight out to avoid damaging the port or connector.

Usage recommendations

Use this direct attach cable for short intra-rack links where 40G throughput and low latency are required. Verify QSFP port compatibility with the host devices and manage cable runs to maintain airflow and serviceability in dense rack environments.