NVIDIA Mellanox LinkX 100GbE QSFP28 to 4x25GbE QSFP28 Direct Attach Cable - 1m Passive Copper

The NVIDIA Mellanox LinkX 100GbE QSFP28 to 4x25GbE QSFP28 Direct Attach Cable (DAC) is a high-performance, cost-effective solution for data center and high-performance computing (HPC) environments. This passive copper cable enables seamless 100 Gigabit Ethernet connectivity by breaking out into four 25GbE links, ideal for connecting switches to servers or storage. With a length of 1 meter (3.3 feet) and 30 AWG wire gauge, it delivers reliable, low-latency performance with minimal power consumption.

Advantages

Optimized for Mellanox/NVIDIA QSFP28 ports, this cable ensures full compatibility and plug-and-play operation. Its passive design consumes less than 0.1W, reducing overall system power and heat. The breakout configuration maximizes port utilization, allowing a single 100GbE port to serve multiple 25GbE devices, simplifying cabling and reducing costs.

Suitable for

• Data center interconnects between top-of-rack switches and servers
• High-performance computing clusters requiring high bandwidth
• Enterprise networking upgrades to 100GbE infrastructure
• Storage area networks (SAN) with 25GbE endpoints

Key specifications

• Cable Type: Direct Attach Cable (DAC) - Passive Copper
• Data Rate: 100 Gigabit Ethernet (100GbE) to 4x25GbE
• Connector Type (End A): QSFP28
• Connector Type (End B): 4x QSFP28
• Cable Length: 1 meter (3.3 feet)
• Wire Gauge: 30 AWG
• Protocol Support: Ethernet, InfiniBand EDR
• Compliance: RoHS, CE, FCC, SFF-8665 (QSFP28 MSA)
• Operating Temperature: 0°C to 70°C (32°F to 158°F)
• Storage Temperature: -40°C to 85°C (-40°F to 185°F)
• Impedance: 100 Ohm
• Jacket Material: PVC
• Hot-Swappable: Yes
• Power Consumption: < 0.1W

Recommendations

For optimal performance, pair this cable with NVIDIA Mellanox switches and network adapters. Ensure your devices support QSFP28 breakout cables and verify compatibility with your specific hardware model. This cable is ideal for short-reach, high-density connections within racks.