Which host interface is supported by the ConnectX-6 Lx MCX631432AN-ADAB?

The product data specifies a PCIe 4.0 x8 host interface. This indicates the adapter connects to the server using eight PCIe Gen4 lanes, offering a high-bandwidth path between the NIC and the system. This interface is suitable for modern servers that expose PCIe 4.0 slots for network adapters.

What form factor is the NVIDIA ConnectX-6 Lx 900-9X625-0053-SB0 designed for?

The adapter is described as an Ethernet SmartNIC OCP 3.0, meaning it is intended for Open Compute Project 3.0 compatible slots on supported servers. OCP 3.0 defines a standardized form factor for mezzanine-style networking modules, allowing consistent mechanical and electrical integration within OCP-based platforms.

Does this ConnectX-6 Lx model include onboard crypto capabilities?

According to the product category description, this specific configuration is a dual-port 25GbE SFP28 PCIe 4.0 x8 adapter with crypto disabled. That means it is not intended to provide onboard cryptographic acceleration and is better suited to environments that handle encryption through other hardware or software components.

Is any information available about the power consumption of this adapter?

Power consumption is listed as a specification category, but no actual values or ranges are provided in the available data. As a result, specific wattage or typical power figures cannot be stated based on the current information. Buyers needing precise power details should refer to more detailed technical documentation.

900-9X625-0053-SB0 - NVIDIA 900-9X625-0053-SB0 Ethernet SmartNIC OCP 3.0

Name: NVIDIA 900-9X625-0053-SB0 Ethernet SmartNIC OCP 3.0
Brand: NVIDIA
SKU: 900-9X625-0053-SB0

900-9X625-0053-SB0 - NVIDIA 900-9X625-0053-SB0 Ethernet SmartNIC OCP 3.0 | US IT Hardware

Product overview

The NVIDIA ConnectX-6 Lx MCX631432AN-ADAB Ethernet SmartNIC, SKU 900-9X625-0053-SB0, is a dual-port 25GbE solution built on the OCP 3.0 form factor. It is categorized as an Ethernet SmartNIC OCP 3.0 with dual-port 25GbE SFP28 connectivity, supporting modern data center networking needs. The adapter uses a PCIe 4.0 x8 host interface, providing a high-bandwidth path between server and network. Dual SFP28 networking ports enable 25GbE Ethernet links, aligning with environments that standardize on SFP28 optics or DAC cabling. With crypto disabled, this model is suitable for deployments that do not require onboard cryptographic acceleration or that rely on external security functions. This card is positioned for integration into OCP 3.0 compliant platforms where consistent 25GbE connectivity and PCIe 4.0 x8 host connectivity are required. Power consumption details are not specified in the available data.

Dual-port 25GbE SFP28 Ethernet connectivity
PCIe 4.0 x8 host interface for high bandwidth
OCP 3.0 Ethernet SmartNIC form factor
ConnectX-6 Lx MCX631432AN-ADAB model
Crypto functionality disabled configuration
NVIDIA brand SmartNIC for data center use

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Featuring

Target Application
Manufacturer part #	900-9X625-0053-SB0
Brand	NVIDIA
Condition	New
Model	MCX631432AN-ADAB
Series	ConnectX-6 Lx EN adapter card
Technology	SmartNIC
Form Factor	OCP 3.0
Bracket Type	Thumbscrew (pull tab)
Product Line	ConnectX-6 Lx
Product Type	Network adapter
Crypto Capability	Crypto disabled; No Crypto

Best for

OCP 3.0 server integration
Designed as an Ethernet SmartNIC OCP 3.0 card, this adapter fits environments standardizing on Open Compute Project 3.0 platforms that require consistent mechanical and electrical compatibility.
25GbE SFP28 networks
With dual-port 25GbE SFP28 interfaces, this SmartNIC suits data centers and aggregation layers built around 25GbE SFP28 optics or DAC-based top-of-rack connectivity.
PCIe 4.0 x8 enabled hosts
The PCIe 4.0 x8 host interface supports servers equipped with PCIe Gen4 slots, allowing the adapter to utilize the available bus bandwidth for 25GbE traffic.
Crypto-offloaded environments
With crypto disabled, this model is appropriate where encryption and related functions are provided by other infrastructure components rather than the network adapter itself.
Dual-port Ethernet consolidation
The dual-port 25GbE design helps consolidate multiple network connections onto a single SmartNIC, aiding link redundancy or network separation within compatible OCP 3.0 systems.

Frequently asked questions

What type of network connectivity does this NVIDIA ConnectX-6 Lx adapter provide?

Details

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Form Factor Variant	OCP 3.0 small form factor (SFF)

Platform Security Features	Hardware root of trust and secure firmware update

Auto Detection of Switch Speed	Autodetection of connected switch speed for 10GbE and 25GbE

Total Theoretical Bandwidth	Up to 50 Gb/s of total bandwidth

Networking Ports & Interfaces

Ports	Dual-port SFP28
Interface	PCIe 4.0 x8
Connector Type	SFP28
Host Management	With Host management
PCIe Link Rates	2.5, 5.0, 8.0, or 16 GT/s
Network Data Rate	25 Gb/s
Network Interface	SFP28
PCIe Host Interface	PCIe Gen 4.0 x8 electrical interface
Network Connectivity	25GbE
Host Interface Version	PCI Express Gen3 and Gen4, 8 lanes
Number of Network Ports	2
Supported Ethernet Speeds	Gigabit Ethernet; 10Gb Ethernet; 25Gb Ethernet
Maximum Data Rate Per Port	25 Gbps per port
PCIe Lane Auto-negotiation	Auto negotiation to x16, x8, x4, x2, or x1 link width
Network Interface Technology	NRZ signaling
Network Interface Description	Dual-port SFP28/25GbE OCP3.0 with PCIe 4.0 x8 host connectivity
Ethernet Data Rates Supported (OCP 3.0 family)	10/25 Gb/s per port on dual-port SFP28 OCP 3.0 cards

NVIDIA 900-9X625-0053-SB0 Ethernet SmartNIC OCP 3.0