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Short twinaxial direct attach cable with QSFP56 connectors on both ends, matte black finish, 0.5 metre length

Axiom

Axiom MCP1650-H00AE30-AX 200GBASE-CR4 QSFP56 passive DAC cable 0.5m

SKU CH-Q13D-MF4P3 MPN MCP1650-H00AE30-AX

A 0.5 m passive DAC cable with QSFP56 connectors for 200GBASE-CR4 links, Mellanox-compatible and pre-coded for OEM routers and switches

  • 200 Gbps direct-attach speed for high-density links
  • Mellanox-compatible coding ensures plug-and-play operation
  • Passive twinax design needs no external power
  • QSFP56 connectors fit standard 200GBase-CR4 ports
  • Half-metre length keeps rack cabling tidy

200GBASE-CR4 QSFP56 Passive DAC Cable

The Axiom MCP1650-H00AE30-AX is a 0.5 metre twinaxial direct attach cable built for 200GBASE-CR4 links. It uses QSFP56 connectors and is pre-coded for Mellanox equipment compatibility. The cable suits data-centre operators who need a short, low-latency interconnect between compatible switches or adapters. It is not for installations that require longer reach or active optical transmission.

Thermals Noise and Power Draw

As a passive twinaxial assembly the cable draws no external power and generates no measurable heat of its own. It adds no fan noise because it contains no active components. Power consumption at the port remains that of the host transceiver circuitry alone. The design is suited to dense racks where thermal headroom and acoustic limits are strict.

Mellanox-Coded QSFP56 Compatibility

The single specification that decides fit is the factory-programmed application code that matches Mellanox OEM requirements. With this code the cable initialises and passes link training on supported Mellanox ports without manual intervention. If the target hardware expects a different vendor code the link will not come up. Verify the switch or NIC vendor list before purchase.

Highlights

  • 200 Gbps direct-attach speed for high-density links
  • Mellanox-compatible coding ensures plug-and-play operation
  • Passive twinax design needs no external power
  • QSFP56 connectors fit standard 200GBase-CR4 ports
  • Half-metre length keeps rack cabling tidy

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 0.5m QSFP56 DAC and what step is often missed?

Insert each QSFP56 connector fully until the latch clicks; the step people miss is confirming the port LED turns solid, which proves the 200GBASE-CR4 link is trained.

What maintenance or replacement will the 0.5m twinaxial cable need later?

No scheduled maintenance; replace only if the cable is kinked, the latch breaks, or the 200G link fails after re-seating both QSFP56 ends.

What limit appears first on the 0.5m passive DAC under sustained 200G traffic?

The 0.5m reach limit; passive twinax is specified for very short rack runs, so distance — not heat or bandwidth — is the first constraint.

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