Direct Attach Copper (DAC) SFP+ cable CBO IB-TWX-0103 compatible — 10Gbps SFP+ twinax, short-range

This Direct Attach Copper (DAC) SFP+ cable, compatible with CBO and identified as model IB-TWX-0103, is a passive twinax solution designed for short-range 10Gbps SFP+ connections. It creates a direct copper link between switches, network interface cards (NICs) and storage devices to deliver low latency and high throughput for server-to-server and rack-level interconnects in data centres and enterprise networks. The cable is intended for scenarios where cost-effective and reliable short-reach cabling is required.

Advantages

The passive twinax construction reduces power consumption and eliminates the need for separate transceivers while maintaining 10Gbps performance. Low latency and high signal integrity make it suitable for demanding network traffic between adjacent racks or within the same rack. The fixed SFP+ connectors simplify installation and reduce points of failure compared with modular fibre transceivers and patching.

Suitable for

• Short-range 10Gbps links between switches
• Direct connections from servers to top-of-rack switches
• Storage arrays and SAN interconnects requiring low latency
• Cost-sensitive data centre and enterprise rack cabling

Key specifications

• Interface type: SFP+ to SFP+ (direct attach twinax)
• Data rate: up to 10 Gbps
• Cable type: passive twinax copper
• Range: short-reach (suitable for intra-rack and adjacent-rack connections)
• Latency: low, suitable for high-throughput applications
• Compatibility: compatible with systems supporting SFP+ passive DACs

How to use

Insert each SFP+ connector into the corresponding SFP+ port on your switch, NIC or storage device until the connector latches. Ensure both ends are fully seated and that ports on both devices are configured for 10Gbps operation. No additional transceivers or optical modules are required; the cable functions as a direct copper link. Verify link status through device management interfaces and perform any necessary network configuration such as link aggregation or VLAN setup as needed for your deployment.

Recommendations

Use this passive DAC SFP+ cable for short, fixed connections where port-to-port distance falls within typical intra-rack or adjacent-rack ranges. Avoid routing the cable through long trays or around sharp bends; maintain manufacturer minimum bend radius to preserve signal quality. For distances beyond the specified short-reach range or where optical isolation is required, consider active DACs or optical SFP+ transceivers with fibre cabling.