BlueOptics SFP+ Direct Attach Cable A1PK-BL 10GBASE-CR, 5 m

BlueOptics SFP+ Direct Attach Cable A1PK-BL 10GBASE-CR, 5 m is a 5 metre passive twinax copper cable engineered for short-reach 10 Gbps links. The cable fits SFP+ ports and provides a direct electrical connection between compatible switches, servers and network interface cards without the need for separate optical transceivers. It implements the 10GBASE-CR electrical specification to deliver low-latency, high-throughput connectivity for top-of-rack and short-distance uplink scenarios.

Advantages

The BlueOptics SFP+ direct attach cable offers a compact, low-power alternative to modular transceivers by integrating cable and connectors into a single assembly. Its passive twinax construction reduces complexity and total cost for short links while maintaining signal integrity at 10 Gbps. The fixed-length 5 m cable simplifies inventory and deployment for predictable rack-to-rack or switch-to-server connections.

Suitable for

• Top-of-rack switch to aggregation switch links in data centres
• Direct server-to-switch connections where SFP+ ports are available
• Short-distance uplinks between networking equipment within the same room or rack row
• Cost-sensitive environments seeking low-power 10 Gbps interconnects

Key specifications

• Data rate: 10 Gbps (10GBASE-CR compliant)
• Connector type: SFP+ direct-attach twinax copper
• Cable type: Passive twinax copper
• Length: 5 metres
• Interface: Electrical 10G SFP+ form-factor
• Typical use: Short-reach, in-rack or adjacent-rack connections

How to use

Insert each SFP+ connector into the corresponding SFP+ port on the network devices until the connector latches. Ensure both devices support SFP+ direct-attach copper connections and are configured for 10 Gbps operation. Verify link status on both endpoints and check for any vendor compatibility settings required in device firmware. To remove the cable, release the latch on the connector and pull straight out to avoid damaging the port.

Usage recommendations

Use the cable for short, fixed-length connections where low latency and low power consumption are priorities. Avoid routing the cable near strong electromagnetic interference sources and maintain bend radii consistent with manufacturer guidance to preserve signal performance. For longer runs or where optical isolation is required, consider fiber-based SFP+ transceivers instead.