BlueOptics BlueLAN QSFP+ Direct Attach Cable 2m, 40Gbps, Passive Twinax, Compatible with Molex 747641201

In high-density data centers, network architects often need a reliable, low-latency link between top-of-rack switches and servers. The BlueOptics BlueLAN QSFP+ Direct Attach Cable delivers exactly that: a 2-meter passive twinax assembly that carries 40 Gigabit Ethernet over copper with minimal power draw. It is fully compatible with Molex 747641201 and MSA-compliant QSFP+ ports, making it a drop-in replacement for original cables. The cable is built with 26 AWG twinax conductors and 100 Ohm impedance, ensuring clean signal integrity for short-reach interconnects. With hot-pluggable connectors and a robust PVC jacket, it simplifies deployment and maintenance in crowded racks.

Key specifications

• Form Factor: QSFP+ to QSFP+
• Data Rate: 40 Gbps (40GBASE-CR4)
• Cable Length: 2 meters
• Cable Type: Passive Twinax Copper, 26 AWG
• Impedance: 100 Ohm
• Power Consumption: < 0.5W
• Operating Temperature: 0°C to 70°C
• Storage Temperature: -40°C to 85°C
• Certifications: RoHS, CE, FCC

Why choose it

This DAC offers a cost-effective alternative to optical transceivers for short distances, eliminating the need for separate optics and fiber. Its passive design means no active components, reducing failure points and power usage. The cable is factory-terminated and tested for compatibility with Molex 747641201, ensuring plug-and-play operation without configuration. The PVC jacket provides durability and flexibility for easy routing in tight spaces.

Ideal use cases

• Data center top-of-rack to server interconnects
• High-performance computing clusters
• Enterprise network core-to-edge links
• Storage area network (SAN) connections

Good to know

The BlueOptics BlueLAN QSFP+ DAC supports hot-swapping, enabling quick replacement without powering down the switch. Its MSA compliance guarantees interoperability with a wide range of networking equipment, while the passive twinax construction ensures low latency and high reliability for mission-critical applications.