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NVIDIA

NVIDIA ConnectX-5 Ex EN 100GbE 2-Port QSFP28 PCIe 4.0 x16 Adapter

MPNMCX516A-CDAT

Also known as 900-9X5AD-0056-ST7

The NVIDIA MCX516A-CDAT is a ConnectX-5 Ex EN adapter with two QSFP28 ports at 100GbE on a PCIe 4.0 x16 card.

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NVIDIA ConnectX-5 Ex EN 100GbE 2-Port QSFP28 PCIe 4.0 x16 Adapter

MCX516A-CDAT · Refurbished · 1 year warranty

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Overview

The Ex in ConnectX-5 Ex marks the PCIe Gen4 generation of ConnectX-5, and the NVIDIA MCX516A-CDAT uses it: two QSFP28 ports at 100GbE connected through PCIe 4.0 x16. A Gen4 slot gives the two ports more host bandwidth than a Gen3 slot of the same width.

That is the practical reason to choose this card over a Gen3 ConnectX-5 EN when your server has Gen4 slots and the workload keeps both ports busy. For hosts that only offer Gen3, the title shows other cards in the family built for that bus.

You will need QSFP28 modules or cables for both cages, and a switch that supports 100GbE on those ports. Check the mechanical fit of an x16 card in your chassis before ordering.

NVIDIA's alternative code 900-9X5AD-0056-ST7 is on file for this part. It is offered refurbished and used. Refurbished cards have 1 year or 3 years of warranty, and used cards have 90 days. Tell us the quantity and platform with your request, and we will reply with availability.

Specifications

NVIDIA MCX516A-CDAT specifications
Manufacturer part numberMCX516A-CDAT
BrandNVIDIA
Form factorPCIe
PCIe interfaceGen4 x16
Ports2
ConnectorQSFP28
ControllerNVIDIA ConnectX-5 Ex
Port speed100GbE
TypeEthernet adapter

Specifications from the manufacturer's datasheet ↗

Alternative part numbers

Other numbers for MCX516A-CDAT, as printed on labels, spare-parts lists and manufacturer documents. Search works with any of them.

Alternative part numbers for MCX516A-CDAT
Part numberTypeBrandNote
900-9X5AD-0056-ST7AlternativeSame brandNVIDIA SKU (900- number) listed against this ordering part numberQuote this part number

FAQ

What does the Ex designation mean on this card?
The product name lists ConnectX-5 Ex with a PCIe 4.0 x16 interface.
How many ports does the MCX516A-CDAT have?
Two QSFP28 ports at 100GbE.
What is the alternative number?
900-9X5AD-0056-ST7.
Is it offered new?
No new offer is listed. Refurbished and used are available.
What warranty applies to refurbished units?
A choice of 1 year or 3 years.

Can't find the exact part?

Send us the part number. We search our supplier network for new, refurbished and used stock and reply within 1 business day.

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