MCX542A-ACAN Mellanox Technologies CONNECTX-5 EN Internal Ethernet 25000 Mbit/s
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CONNECTX-5 EN
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MCX542A-ACAN Overview
MELLANOX MCX542A-ACAN Connectx-5 En Network Interface Card For Ocp2.0 Type 1 With Host Management 25gbe Dual-port Sfp28 Pcie3.0 X16
2 x 25G Ethernet, PCIe3.0 x16, SFP28/SFP+/SFP
- Wireless
- PCI Express 3.0 Ethernet
- 25 Gigabit Ethernet 25000 Mbit/s
- Internal Component for: Server
Summary Description
Mellanox Technologies CONNECTX-5 EN. Internal. Connectivity technology: Wireless, Host interface: PCI Express, Interface: Ethernet. Maximum data transfer rate: 25000 Mbit/s. Product colour: Black, Green, Silver, White
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Specifications
Overview
| Condition | Refurbished |
|---|---|
| Brand | Mellanox |
| Stock | In Stock |
Ports & interfaces
| Connectivity technology | Wireless |
|---|---|
| Host interface | PCI Express |
| Interface | Ethernet |
| Ethernet LAN (RJ-45) ports | 2 |
| Fiber optic connector | SFP, SFP+, SFP28 |
| PCI version | 3.0 |
Network
| Maximum data transfer rate | 25000 Mbit/s |
|---|---|
| Networking standards | IEEE 802.1Q, IEEE 802.1p, IEEE 802.1x, IEEE 802.3ae, IEEE 802.3az, IEEE 802.3ba, IEEE 802.3bm, IEEE 802.3bz |
| Ethernet LAN | Y |
| Ethernet interface type | 25 Gigabit Ethernet |
| Ethernet LAN data rates | 10,100,1000,1200,2500,5000,10000,25000 Mbit/s |
Design
| Component for | Server |
|---|---|
| Product colour | Black, Green, Silver, White |
| Internal | Y |
| Plug and Play | Y |
Frequently Asked Questions
What are the primary performance capabilities of the Mellanox ConnectX-5 EN MCX542A-ACAN? +
The MCX542A-ACAN offers dual-port 25GbE connectivity, providing high-bandwidth throughput suitable for compute-intensive data center applications. It leverages advanced hardware offloading, including RDMA over Converged Ethernet (RoCE), to significantly reduce CPU overhead and latency. This makes it an ideal choice for high-performance computing, cloud-native deployments, and storage environments requiring rapid data movement and low-latency response times.
How does the MCX542A-ACAN utilize PCIe interfaces for server connectivity? +
This adapter utilizes a PCIe Gen3 x8 interface to ensure efficient data transfer between the network and the server bus. By effectively balancing lane utilization, it ensures the host system can fully saturate the dual 25GbE ports, minimizing bottlenecks in virtualized environments or database clusters where high I/O throughput is critical for system performance.
Does the Mellanox ConnectX-5 support virtualization features like SR-IOV? +
Yes, the ConnectX-5 EN series is specifically designed for virtualized data centers. It fully supports Single Root I/O Virtualization (SR-IOV), allowing multiple virtual machines to share a single physical port directly. This capability provides near-native performance for guest operating systems, significantly improving efficiency in heavy cloud multi-tenancy scenarios and large-scale enterprise server virtualization deployments.
What type of optical or copper transceivers are compatible with the MCX542A-ACAN? +
The card features SFP28 ports, which maintain backward compatibility with SFP+ modules and cables. This allows for flexible deployment using 25GbE SFP28 optics and direct-attach copper cables (DAC) for short-range top-of-rack connectivity, or standard 10GbE SFP+ modules where 25GbE infrastructure is not yet fully implemented, providing a scalable path for future network upgrades.
How does RoCE implementation on the ConnectX-5 affect network efficiency? +
RDMA over Converged Ethernet (RoCE) allows the adapter to bypass the host OS kernel and move data directly between memory spaces of different servers. By offloading this transport layer task to the hardware, the MCX542A-ACAN drastically reduces CPU latency and power consumption, enabling faster application response times in scale-out storage clusters and high-frequency trading platforms.
Is the MCX542A-ACAN compatible with standard rack-mount server chassis? +
The card is designed with a standard low-profile form factor, making it highly versatile for various server configurations. It typically includes the necessary bracketry for standard PCIe slots, ensuring it fits cleanly into most 1U and 2U rack-mount servers common in modern enterprise data centers without requiring specialized mechanical modifications to the server chassis.
What management software is used to configure and monitor this Mellanox NIC? +
You can manage and configure this card using standard Mellanox NEO software and industry-standard tools like OFED drivers. These utilities provide comprehensive visibility into network health, interface statistics, and firmware management, ensuring the adapter is optimized for your specific operating environment, whether you are running Linux-based kernels or Windows Server deployments.
How does this NIC contribute to overall data center power efficiency? +
By offloading compute-heavy tasks such as storage acceleration and packet encapsulation from the main CPU, this adapter helps lower the total power draw of the server. Reduced CPU utilization translates to lower heat generation and energy requirements, allowing enterprise IT managers to achieve better performance-per-watt ratios across their entire server infrastructure when deploying high-density ConnectX-5 adapters.
Can I request a bulk quote for multiple MCX542A-ACAN units through BuyRouterSwitch.com? +
Absolutely. We specialize in catering to enterprise-level procurement and large-scale infrastructure projects. If you require a significant volume of these NICs for a data center rollout, please reach out to our sales team directly. We are equipped to provide competitive bulk pricing and tailored quotations that align with your project budget and procurement timelines.
Why should I choose BuyRouterSwitch.com for my Mellanox hardware procurement? +
BuyRouterSwitch.com is a dedicated resource for enterprise networking equipment, providing authentic hardware directly sourced for professional integration. Our streamlined ordering process and expert sales focus ensure you receive the exact specifications required for your critical infrastructure. By choosing us, you benefit from a reliable supply chain partner committed to delivering high-quality networking solutions for your business needs.
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