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Green printed circuit board with silver PCIe x16 edge connector and one silver QSFP28 port bracket

Mellanox Technologies

Mellanox Technologies MCX653105A-HDAT ConnectX-6 VPI network card 200Gb PCIe 4.0 x16 QSFP28

SKU CH-3BDX-3NY2P

A 200Gb Ethernet and InfiniBand adapter with a PCIe 4.0 x16 interface and one QSFP28 port

  • 200 Gb/s throughput for high-bandwidth workloads
  • PCIe 4.0 x16 interface maximises host bandwidth
  • Single QSFP28 port supports 200 Gb Ethernet and InfiniBand
  • ConnectX-6 VPI architecture enables dual-protocol flexibility
  • Low-latency design accelerates data-centre applications

ConnectX-6 VPI 200 Gb Adapter

The Mellanox ConnectX-6 VPI is a single-port network adapter that delivers 200 gigabits per second over Ethernet or InfiniBand. It plugs into a PCIe 4.0 x16 slot and uses a QSFP28 cage for the physical link. The card targets high-performance compute clusters, storage fabrics and low-latency trading platforms that need deterministic throughput.

One QSFP28 port at 200 Gb

A single QSFP28 interface provides 200 Gb/s of bandwidth for either Ethernet or InfiniBand traffic. The PCIe 4.0 x16 host interface supplies enough lane bandwidth to sustain line-rate packets in both directions. Workloads that require multiple 200 Gb links or a second physical port will need additional adapters.

Passive thermal design for dense racks

The adapter relies on chassis airflow across a heatsink; no onboard fan is present so acoustic output is zero. Power draw scales with link utilisation and cable type but remains within the PCIe slot and QSFP28 module specifications. Installations must ensure sufficient front-to-back airflow to keep the heatsink within its operating envelope.

Highlights

  • 200 Gb/s throughput for high-bandwidth workloads
  • PCIe 4.0 x16 interface maximises host bandwidth
  • Single QSFP28 port supports 200 Gb Ethernet and InfiniBand
  • ConnectX-6 VPI architecture enables dual-protocol flexibility
  • Low-latency design accelerates data-centre applications

Specifications

No published specifications for this item yet.

Questions about this item

Will the PCIe 4.0 x16 interface of the MCX653105A-HDAT work in my older PCIe 3.0 slot?

The card fits a PCIe 3.0 x16 slot and will operate at PCIe 3.0 speeds, reducing maximum throughput from the rated 200 Gb/s.

How can I confirm the ConnectX-6 VPI is running at 200 Gb/s after installation?

Check the link status in the OS network tool or switch management console; it should report a 200 Gb/s active link on the QSFP28 port.

Does the MCX653105A-HDAT include a QSFP28 transceiver or cable, or must I buy one separately?

The adapter ships with the card only; a compatible QSFP28 transceiver or direct-attach cable must be purchased separately.

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