Direct Attach Copper DAC Cable Lightwin 10 Gbit SFP+ to SFP+ LWO-DAC-SFPP-5M 5m

Lightwin LWO-DAC-SFPP-5M is a 5-metre Direct Attach Copper (DAC) passive cable designed for 10 Gbit/s SFP+ to SFP+ connections. The cable links compatible SFP+ ports on switches, servers and network appliances with a low-latency, energy-efficient copper interconnect suited for short-reach connections inside racks and data centre topologies. Its fixed length and plug-and-play SFP+ terminations eliminate the need for separate transceivers while maintaining 10 Gbit/s throughput for supported ports.

Advantages

This DAC cable provides a reliable short-reach solution with minimal latency and reduced power consumption compared with active optical transceivers. Passive SFP+ to SFP+ construction offers native compatibility with equipment supporting SFP+/XFP form factors and removes the cost and complexity of separate optics. The fixed 5 m length simplifies cabling planning for adjacent racks or server-to-switch links and supports 10 Gbit/s bandwidth over copper without external power.

Suitable for

• Short-reach interconnects between switches in the same rack or adjacent racks
• Server-to-top-of-rack switch connections in data centres
• Aggregation links and network appliances with SFP+ ports

When it may not be suitable

This passive copper DAC is intended for short-distance links and is not suitable for long-haul connections or where fibre-optic reach and isolation are required. It may not be appropriate in environments with frequent cable movement or where electromagnetic interference and grounding differences demand optical separation.

Key specifications

• Data rate: 10 Gbit/s
• Connector type: SFP+ to SFP+
• Cable type: Passive Direct Attach Copper (DAC)
• Length: 5 metres
• Typical use: Short-reach, rack-level interconnects

How to use

Insert each SFP+ connector into the corresponding SFP+ port on the devices to be connected, ensuring the latch engages and the connectors are fully seated. Confirm that both devices support passive DAC cables and 10 Gbit/s SFP+ operation. After insertion, verify link state and negotiate speed according to the host devices' network interface settings. For removal, release the connector latch before pulling the cable to avoid damage to the ports.

What to consider before purchase

• Confirm both devices support passive SFP+ DAC cables and 10 Gbit/s links
• Verify that a fixed 5 m length is appropriate for your rack layout and cable management
• Assess environmental factors such as potential electromagnetic interference or the need for optical isolation

Usage recommendations

Use this Lightwin 10 Gbit SFP+ to SFP+ DAC cable for stable, low-latency rack-level connections. Maintain secure seating of connectors, avoid sharp bends near the terminations, and route the cable to minimise strain and airflow obstruction in server racks.