BlueLAN 400G QSFP-DD Direct Attach Copper Cable, 2m, 26 AWG, Passive Twinax, Blue, Mellanox MCP1660-W01AE30 Compatible

High-density data centers demand reliable, low-latency links that won't break the budget. The BlueLAN MCP1660-W01AE30-BL QSFP-DD Direct Attach Copper (DAC) cable delivers 400 Gigabit Ethernet over a short 2-meter reach, eliminating the need for expensive optical transceivers in top-of-rack and adjacent-rack deployments. Engineered as a drop-in replacement for NVIDIA Mellanox MCP1660-W01AE30, this passive twinax assembly provides plug-and-play compatibility with QSFP-DD ports, ensuring seamless integration into existing InfiniBand and Ethernet fabrics.

Who is it for

Network architects, data center operators, and HPC cluster administrators who need to connect QSFP-DD switches, NICs, and storage nodes within the same rack or adjacent racks. It is ideal for spine-leaf architectures, high-performance computing clusters, and enterprise core networks where 400G density and low power consumption are critical. If you are deploying NVIDIA Mellanox Spectrum switches or ConnectX adapters, this cable is a cost-effective alternative to optical modules for short links.

Main features

• 400GBASE-CR4 passive copper cable with QSFP-DD connectors on both ends
• Supports 400 Gbps aggregate data rate for Ethernet and InfiniBand HDR
• 26 AWG twinax construction ensures signal integrity over 2 meters
• Hot-swappable design for easy installation and maintenance
• Blue jacket for quick identification in dense cable trays
• Fully compatible with NVIDIA Mellanox MCP1660-W01AE30 part number
• Low power consumption: passive design draws no additional power

Specifications

• Cable Type: Direct Attach Copper (DAC)
• Connector Type (End A): QSFP-DD
• Connector Type (End B): QSFP-DD
• Data Rate: 400 Gbps
• Ethernet Standard: 400GBASE-CR4
• Protocol Support: Ethernet, Infiniband
• Compatibility: Mellanox (NVIDIA) MCP1660-W01AE30
• Cable Length: 2 Meter
• Wire Gauge: 26 AWG
• Transceiver Type: Passive Twinax
• Cable Material: Copper
• Jacket Color: Blue
• Hot Swappable: Yes
• Application: Data Center, High-Performance Computing (HPC), Enterprise Networking

Tips

For optimal performance, ensure both connected devices support QSFP-DD ports and 400G speeds. This DAC cable is best suited for short distances up to 2 meters; for longer runs, consider active optical cables or optical transceivers. The blue jacket aids in cable management and identification in dense environments.