BLUELAN Compatible Mellanox MCP1650-H003E26 QSFP56 Direct Attach Cable, 200GBASE-CR4, InfiniBand, 30AWG, 3 Meter MCP1650-H003E26-BL

In high-density data centers and HPC clusters, network engineers need reliable, low-latency 200G links between QSFP56 ports. This BLUELAN direct attach cable provides a passive copper connection that matches Mellanox MCP1650-H003E26 specifications, delivering 200GBASE-CR4 throughput over a 3-meter reach with 30 AWG conductors.

Key specifications

• Connector: QSFP56 to QSFP56
• Data rate: 200 Gbps
• Standard: 200GBASE-CR4
• Protocols: InfiniBand HDR, Ethernet 200GbE
• Length: 3 meters
• Wire gauge: 30 AWG
• Cable type: Passive copper
• Impedance: 100 Ohm
• Electrical interface: SFF-8665 compliant
• Hot swappable: Yes

Why choose it

This DAC is engineered for short-reach, high-bandwidth interconnects where fiber optics would add unnecessary cost and power. Passive design means no signal regeneration, ensuring minimal latency and power consumption. It is fully compatible with Mellanox MCP1650-H003E26, making it a drop-in replacement for original or third-party deployments.

Ideal use cases

• Top-of-rack to server connections in 200GbE networks
• InfiniBand HDR fabric links in HPC clusters
• Data center spine-leaf architecture within a rack
• High-frequency trading or AI/ML training clusters requiring low latency

Good to know

As a passive cable, it draws no power and introduces no additional heat. The 30 AWG copper construction balances flexibility with signal integrity over 3 meters. It supports hot swapping for easy maintenance. RoHS compliance ensures environmental safety. For longer distances, consider active optical cables or fiber transceivers.