Mellanox Connectx-5 Single Port Edr Vpi Qsfp28 Infiniband Adapter

mellanox connectx-5 single port edr vpi qsfp28 infiniband adapter 2023 April

What is the Mellanox ConnectX-5 VPI dual-port Ethernet card?

In our review, we are using the Mellanox ConnectX-5 VPI dual-port InfiniBand or Ethernet card. Specifically, we have a model called the Mellanox MCX556A-EDAT or CX556A for short. The first 5 in the model number denotes ConnectX-5, the 6 in the model number shows dual port, and the D denotes PCIe 4.0.

Is Mellanox the only provider for InfiniBand and Ethernet?

If you want InfiniBand and Ethernet, especially if you need a card to have one port of each, Mellanox is the only provider out there. There are very few instances where we can say that there are applications with only one solution, and this is one of those instances.

What are the Nvidia ConnectX-5 InfiniBand/VPI adapter cards?

NVIDIA ConnectX-5 InfiniBand/VPI Adapter Cards User Manual Connector: Single QSFP28 InfiniBand and Ethernet (copper and optical) Auto-Negotiation: 1X/2X/4X SDR (2.5Gb/s per lane), DDR (5Gb/s per lane), QDR (10Gb/s per lane), FDR10 (10.3125Gb/s per lane), FDR (14.0625Gb/s per lane), EDR (25Gb/s per lane) port

Why buy Mellanox ConnectX-5 over Intel Omni-Path?

Our example of using one port for EDR InfiniBand and one for 100GbE is the reason to buy a Mellanox ConnectX-5 over any other adapter. If you want InfiniBand, Mellanox is essentially the only player in town. Intel Omni-Path does not currently have this Ethernet option.


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