MCX542B-ACAN Mellanox Technologies ConnectX-5 EN Internal Ethernet 25000 Mbit/s
-
$79.10 In Stock - Ships Worldwide Order by 2:00 PM ET for Overnight ShippingWas: $90.96You Save: $11.86 13% OFF
-
Warranty: 90-day return/replacement
Click here to read our Return Policy for returns/replacements.
ConnectX-5 EN
Free ground shipping within the
United States
Government, Federal & Education Procurement
We support quotes, POs, stock docs, and compliance invoicing.
Email: support@buyrouterswitch.com SAM.gov Registered Vendor CAGE Code : 23P86
overview
specifications
faqs
reviews
MCX542B-ACAN Overview
MELLANOX MCX542B-ACAN Connectx-5 En 25gbe 2-port Pcie 3.0 X8
ConnectX-5 EN for OCP2.0 Type 1 with Host Management 25GbE Dual-Port SFP28 PCIe3.0 x8 No Bracket
- Wired
- PCI Express 3.0 Ethernet
- 10 Gigabit Ethernet, 25 Gigabit Ethernet, Gigabit Ethernet 25000 Mbit/s
- Internal Component for: Server
Summary Description
Mellanox Technologies ConnectX-5 EN. Internal. Connectivity technology: Wired, Host interface: PCI Express, Interface: Ethernet. Maximum data transfer rate: 25000 Mbit/s. Product colour: Multicolour
Need help with MCX542B-ACAN?
Get pricing, availability, lead time, and compatible options from our team. Chat with us live or email support@buyrouterswitch.com
Specifications
Overview
| Condition | Refurbished |
|---|---|
| Brand | Mellanox |
| Stock | In Stock |
Ports & interfaces
| Connectivity technology | Wired |
|---|---|
| Host interface | PCI Express |
| Interface | Ethernet |
| Fiber ports quantity | 2 |
| Fiber optic connector | 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 | Yes |
| Ethernet interface type | 10 Gigabit Ethernet, 25 Gigabit Ethernet, Gigabit Ethernet |
| Ethernet LAN data rates | 1000,10000,25000 Mbit/s |
Design
| Component for | Server |
|---|---|
| Product colour | Multicolour |
| Internal | Yes |
Sustainability
| Sustainability certificates | RoHS |
|---|
Frequently Asked Questions
What is the primary interface and port configuration for the Mellanox ConnectX-5 EN MCX542B-ACAN? +
The MCX542B-ACAN is a high-performance network interface card featuring dual 25GbE SFP28 ports. It utilizes a PCIe 3.0 x8 host interface, providing the necessary bandwidth for demanding data center workloads, high-speed storage connectivity, and cloud-native application environments that require low-latency Ethernet communication.
Which operating systems and hypervisors are compatible with the ConnectX-5 EN series? +
This adapter supports a broad range of enterprise-grade operating systems, including major Linux distributions, Microsoft Windows Server versions, and virtualization platforms like VMware ESXi. Compatibility ensures seamless integration into heterogeneous server environments where standardized driver support and high-speed networking are critical for maintaining consistent throughput across the infrastructure stack.
Does the MCX542B-ACAN support RDMA over Converged Ethernet (RoCE)? +
Yes, this card is specifically engineered to support RoCE, which allows for direct memory access between servers over Ethernet. By offloading this process from the CPU, the ConnectX-5 significantly reduces latency and lowers processor overhead, making it an ideal choice for high-performance computing clusters and NVMe-over-Fabrics storage deployments.
How does the ConnectX-5 EN assist in offloading CPU-intensive network tasks? +
The card features advanced hardware offloads for NVGRE, VXLAN, and GENEVE encapsulation protocols. By handling these tunneling protocols directly on the silicon, the adapter enables high-performance network virtualization without burdening the host CPU, allowing server resources to remain dedicated to running critical business applications and services.
What are the common deployment scenarios for this 25GbE server NIC? +
The MCX542B-ACAN is frequently deployed in modern data centers for high-bandwidth server connectivity, private cloud infrastructure, and large-scale database clusters. Its dual-port configuration provides essential redundancy and increased throughput capacity for traffic-heavy applications that demand reliable, low-latency connectivity within the top-of-rack leaf-switch fabric.
Is the MCX542B-ACAN compatible with older PCIe slots? +
While the card utilizes a PCIe 3.0 x8 interface for optimal performance, it is physically and logically compatible with higher-generation PCIe slots, such as 4.0 or 5.0. When installed in older slots, the card will negotiate to the maximum available speed of the motherboard, ensuring versatility across various server generations while maintaining standardized Ethernet connectivity.
Does this network card support SR-IOV for virtualization? +
The ConnectX-5 EN fully supports Single Root I/O Virtualization (SR-IOV). This technology allows a single physical NIC to appear as multiple separate virtual functions to the host OS. This is essential for cloud service providers and enterprise virtualized environments where performance isolation and efficient resource sharing across multiple virtual machines are required.
How do I ensure optimal airflow and cooling for this NIC in a rack-mount server? +
To ensure peak performance, this card relies on the chassis-level airflow provided by standard server cooling systems. It is designed to be installed in standard 1U or 2U chassis environments. We recommend maintaining proper server fan configurations and ensuring that the PCIe expansion area remains unobstructed to allow for consistent heat dissipation during heavy network loads.
How can I obtain a bulk quote for multiple Mellanox ConnectX-5 units? +
If you are planning a large-scale server refresh or infrastructure expansion, our team at BuyRouterSwitch.com is ready to assist. Simply contact our sales department directly through the product page or our main portal. We provide competitive pricing and customized quotes tailored to the volume requirements of your enterprise networking project.
Why should I choose BuyRouterSwitch.com for my Mellanox hardware procurement? +
BuyRouterSwitch.com is a trusted source for authentic enterprise networking hardware. We focus on streamlining your procurement process, ensuring that you receive the exact technical specifications required for your environment. By leveraging our deep inventory and streamlined ordering process, you gain access to reliable components that meet the stringent performance standards demanded by modern IT departments.
Related Products
$108.30
Special Price
$140.00
was
$161.00
$158.20
$70.68
Special Price
$51.30
was
$59.00
Supermicro AOC-A25G-M2SM 2-port 25 Gigabit Ethernet Adapter with a 0.5U height Bracket
Part #: AOC-A25G-M2SM
Supermicro
Special Price
$192.50
was
$221.38
Special Price
$49.95
was
$57.44
717491-B21 HPE Ethernet 10Gb 2-port 570FLR-SFP+ Adapter Internal Fiber 10000 Mbit/s
Part #: 717491-B21
HPE
Special Price
$418.00
was
$480.70
Special Price
$721.50
was
$829.73
Special Price
$61.60
was
$70.84
Need Help Choosing the Right Part? Talk to an Expert
-
+1 (800) 870-9487Mon-Fri 8am-5pm EST
-
support@buyrouterswitch.comTechnical support
