SFP+ Direct Attach Cable BlueOptics A51N 10GBASE-CR, 2 m

The BlueOptics A51N SFP+ Direct Attach Cable is a 2 m twinax copper assembly that provides 10GBASE-CR connectivity for short-range 10 Gigabit Ethernet links. Designed for SFP+ ports, this passive DAC cable offers a low-latency, cost-effective physical connection between servers, switches and other networking equipment in data centers and rack environments. The cable's SFP+ connectors fit standard SFP+ cages and deliver a straightforward solution for high-throughput, short-distance links without the need for optical transceivers.

Advantages

The BlueOptics 10GBASE-CR cable delivers deterministic electrical performance with minimal signal conversion, reducing latency compared with optical alternatives. Its passive construction reduces power draw and total cost of ownership while providing stable 10 Gbps throughput. The 2 m length balances reach and convenience for typical rack-to-rack and server-to-switch connections, and the standardized SFP+ form factor ensures broad compatibility with SFP+ ports.

Suitable for

• Short-range 10 Gigabit Ethernet links between servers and top-of-rack switches
• Switch-to-switch connections within the same rack or adjacent racks
• Data center patching where low latency and cost efficiency are required
• High-density networking environments using SFP+ ports

Key specifications

• Interface: SFP+ to SFP+
• Data rate: 10 Gbps (10GBASE-CR)
• Link medium: Twinax copper
• Length: 2 meters
• Connector type: SFP+ compliant plug
• Latency: Passive/direct attach, low electrical latency

How to use

Insert each SFP+ plug into the corresponding SFP+ port on the network devices until the connector latch engages. Ensure both ends are seated firmly and that the cable length and routing avoid tight bends or mechanical strain. No additional configuration or optical transceivers are required; connected devices should detect the physical link and negotiate the 10 Gbps electrical interface according to their port capabilities and link settings.

Usage recommendations

Use this 2 m direct attach cable for short, rack-level connections where low latency and reduced power consumption are priorities. Avoid exceeding the specified bending radius, and verify device compatibility with SFP+ passive DAC assemblies before deployment. For longer distances or fiber-based infrastructure, consider optical transceivers and fiber cabling instead.