QSFP+ to QSFP+ 40G Direct Attach Copper Cables

QSFP+ 40G DAC CABLES

40G DAC Cables up to 10m

Connect QSFP+ to QSFP+ ports

The QSFP+ 40G DAC cable, also known as a Twinax cable, enables in-rack or cross-rack communication for direct port connections between switches, routers, and servers.

These adaptable, cost-effective cables have pre-installed interfaces and transmit data just like conventional QSFP+ optical transceivers. These cables come in fixed lengths of 0.5m, 1m, 2m, 3m, 4m, 5m, 7m, and 10m but can also be made by our team to a custom length if needed.

Passive or Active?

QSFP+ 40G DAC cables are available in two versions, passive and active. Passive cables, which are primarily used for shorter distances, are available up to 7m in length. They have minimal power consumption as they don’t contain electronics for signal conditioning. Active cables, on the other hand, are used for longer distances, typically up to 10m, and do contain electronics for signal conditioning. Active cables can also be used for short distance transmission if the vendor requires it.

Compliance

All QSFP+ 40G DAC cables are compliant with MSA (Multi-Source Agreement) SFF-8436.

Vendor/OEM compatibility

These QSFP+ 40G DAC cables can be programmed to be compatible with all major switch and server brands, such as Arista, Cisco, Dell, HP, and Juniper (see full list of options above). Complete Connect DAC cables have a 5-year warranty and a 90-day guarantee to test compatibility.

We can offer a cross compatibility service allowing multiple vendors to be connected from the same DAC direct connect cable. For example, end A could be programmed to be compatible with Arista while end B could be programmed to work with Mellanox.

QSFP+ 40G DAC Cable Features

  • Max. length: Passive 7m, Active 10m
  • Min. bend radius: 30mm – 45mm
  • Wire AWG: 30 – 24AWG
  • Power consumption: <0.5W

QSFP+ 40G DAC cables

Find more information on DAC cables.

What is a DAC cable?

See AOC for longer cables

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