What network interface form factor does this adapter use?

The adapter is specified as a single-port 200GbE QSFP56 device. This indicates that the physical network interface is a QSFP56 port, which supports 200GbE operation using compatible QSFP56 optical modules or direct attach cables. It should be connected to switches or equipment that also offers QSFP56 ports.

Which host interface is required for the MCX623105AC-VDAT?

The MCX623105AC-VDAT is listed under the category Single-port 200GbE QSFP56 PCIe 4.0 x16, indicating that it uses a PCIe 4.0 x16 host interface. To deploy this adapter, servers must provide an available PCIe 4.0 x16 slot to ensure adequate bandwidth between the host system and the 200GbE network port.

Is the MCX623105AC-VDAT suitable for Ethernet-only networks?

Yes, this product is described as an Ethernet PCIe adapter and as a Single-port 200GbE QSFP56 PCIe 4.0 x16 device. These descriptors indicate that its functionality is focused on Ethernet connectivity rather than other network protocols, making it appropriate for Ethernet-based data center and enterprise environments.

How many network ports does the MCX623105AC-VDAT provide?

: "The adapter is defined as a single-port 200GbE QSFP56 PCIe 4.0 x16 product, which means it has one network port available for connection. That single port operates at 200GbE over a QSFP56 interface, concentrating network capacity on a single high-speed link per card.

MCX623105AC-VDAT - NVIDIA MCX623105AC-VDAT 200GbE QSFP56 PCIe 4.0 x16 adapter

Name: NVIDIA MCX623105AC-VDAT 200GbE QSFP56 PCIe 4.0 x16 adapter
Brand: NVIDIA
SKU: MCX623105AC-VDAT
Price: 968 USD
Availability: InStock

MCX623105AC-VDAT - NVIDIA MCX623105AC-VDAT 200GbE QSFP56 PCIe 4.0 x16 adapter | US IT Hardware

Product overview

The NVIDIA ConnectX-6 Dx EN adapter card MCX623105AC-VDAT is a single-port 200GbE Ethernet PCIe adapter designed for environments that require high bandwidth and modern interface standards. It provides a 200GbE Ethernet connection through a QSFP56 interface, supporting high-throughput networking in compatible systems. The adapter connects over a PCIe 4.0 x16 host interface, enabling substantial bandwidth between the server and the network card for demanding workloads. As part of the ConnectX-6 Dx EN family, this adapter focuses on Ethernet connectivity using a single QSFP56 port at 200GbE. The PCIe 4.0 x16 interface helps align server I O capabilities with the adapter’s 200GbE link speed. This combination of 200GbE single-port QSFP56 and PCIe 4.0 x16 makes the MCX623105AC-VDAT suitable for data center and enterprise deployments that standardize on high-speed Ethernet infrastructure.

Single-port 200GbE Ethernet connectivity
QSFP56 interface for 200GbE links
PCIe 4.0 x16 host connection
ConnectX-6 Dx EN adapter platform
NVIDIA brand with ConnectX-6 Dx series
Designed for Ethernet-focused deployments

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Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Physical Size
Manufacturer part #	MCX623105AC-VDAT
Brand	NVIDIA
Condition	Refurbished
Model	MCX623105AC-VDAT
Series	ConnectX-6 Dx
Bracket	Low-profile bracket installed; full-height bracket optional
Card Type	PCI Express adapter card
Technology	Ethernet
Form Factor	Low profile
Product Line	ConnectX-6 Dx EN
Product Type	Ethernet adapter card

Best for

High-speed Ethernet aggregation
Suitable for deployments standardizing on 200GbE Ethernet, using the single-port QSFP56 interface to provide high-bandwidth uplinks in aggregation or core networking roles.
PCIe 4.0 x16 server integration
Designed for servers with PCIe 4.0 x16 slots, ensuring that the adapter’s host interface can match the demands of a 200GbE Ethernet connection for data-intensive workloads.
QSFP56-based network fabrics
Fits environments that use QSFP56 optics or DACs as their physical layer, allowing the 200GbE single-port adapter to plug into existing QSFP56-based switching infrastructure.
Single-port high-bandwidth applications
Appropriate for applications that require one high-capacity 200GbE link rather than multiple lower-speed ports, simplifying connectivity while retaining significant throughput.
Ethernet-focused data center designs
Integrates into Ethernet-only data center topologies as a 200GbE adapter, aligning with architectures built around high-speed Ethernet links and QSFP56 connectivity.

Frequently asked questions

What is the Ethernet speed of the NVIDIA MCX623105AC-VDAT adapter?

Details

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Adapter Family	ConnectX-6 Dx Ethernet adapter cards

Crypto Capability	Crypto enabled

Secure Boot Support	Yes

Networking Ports & Interfaces

Ports	1 x QSFP56 Ethernet port
Port Type	QSFP56 (copper and optical supported)
Connector Type	QSFP56
Host Interface	PCI Express 4.0 x16
Interface Bus Type	PCIe 4.0
Port Configuration	Single-port
PCIe Signaling Rate	16.0 GT/s
PCIe Interface Width	x16
Maximum Ethernet Speed	200 GbE
Network Interface Type	Ethernet
Supported Ethernet Speeds	200/100/50/25/10/1 GbE