BlueLAN 400G OSFP to OSFP Passive Direct Attach Copper Cable, 0.5 m, 26 AWG, Black

This BlueLAN direct attach cable delivers 400 Gigabit Ethernet over a short 0.5-meter twinaxial copper link, eliminating the need for separate optical transceivers in high-density rack and adjacent-rack connections. Its passive design consumes less than 0.1 W, making it an energy-efficient choice for data centers where power and thermal budgets are constrained.

Highlights

• 400G OSFP to OSFP passive DAC for high-speed server-to-switch or switch-to-switch links
• 26 AWG twinaxial copper construction with PVC jacket for flexible, reliable cabling
• Hot-swappable and compliant with IEEE 802.3db and OSFP MSA
• Operates from 0°C to 70°C, suitable for typical data center environments

In daily use

With a 0.5-meter reach, this cable is ideal for connecting equipment within the same rack or between adjacent racks. The OSFP connectors lock securely into compatible ports, and the passive design means no additional power or configuration is required. The black jacket blends into standard rack cabling, and the 26 AWG conductors provide a balance of flexibility and signal integrity at 400G speeds.

Full specifications

• Product Type: Direct Attach Cable (DAC)
• Cable Type: Twinaxial Copper
• DAC Type: Passive
• Data Rate: 400 Gigabit Ethernet (400G)
• Connector A: OSFP
• Connector B: OSFP
• Cable Length: 0.5 m
• Wire Gauge: 26 AWG
• Impedance: 100 Ohm
• Power Consumption: < 0.1 W
• Operating Temperature: 0°C to 70°C
• Storage Temperature: -40°C to 85°C
• Humidity: 5% to 95% non-condensing
• Jacket Material: PVC
• Colour: Black
• Compliance: IEEE 802.3db (400GBASE-CR4), OSFP MSA (SFF-8636)
• Hot Swappable: Yes

Final note

For short-reach 400G connectivity without the cost and power draw of optical modules, this BlueLAN passive DAC offers a straightforward, reliable solution.