Lightwin 25G SFP28 to SFP28 Direct Attach Copper Cable, 1m, Passive, 25GBASE-CR LWO-DAC-SFP28-1M

High-density 25 Gigabit Ethernet links in data centers often suffer from expensive optical transceivers and fragile fiber cabling. The Lightwin LWO-DAC-SFP28-1M eliminates that cost and complexity with a direct attach copper assembly that plugs straight into SFP28 ports on both ends. It delivers full 25 Gbps throughput over a short 1-meter reach, making it ideal for top-of-rack switches, servers, and storage arrays in the same rack or adjacent racks.

Who is it for

Network engineers and data center operators who need reliable, low-latency 25GbE connections between SFP28-equipped devices without the expense of optical modules. Perfect for high-performance computing clusters, enterprise core-to-edge links, and storage area networks where short-reach copper is sufficient.

Main features

• Passive direct attach copper cable with SFP28 connectors on both ends
• Supports 25 Gigabit Ethernet (25GBASE-CR) per IEEE 802.3by
• Ultra-low latency and power consumption under 0.1W per end
• Hot-swappable for easy installation and maintenance
• Durable PVC jacket with 100 Ohm impedance for signal integrity
• RoHS, CE, and FCC compliant for global deployment

Specifications

• Cable length: 1 meter (3.3 feet)
• Data rate: 25 Gbps
• Connector type: SFP28 to SFP28
• Cable material: Copper
• Transceiver type: Passive
• Impedance: 100 Ohm
• Operating temperature: 0°C to 70°C (32°F to 158°F)
• Storage temperature: -40°C to 85°C (-40°F to 185°F)
• Certifications: RoHS, CE, FCC

Tips

Ensure both devices have SFP28 ports and support 25GBASE-CR. For longer distances or higher port density, consider active optical cables or optical transceivers. Keep the bend radius above the manufacturer's recommendation to avoid signal degradation.