Mellanox Technologies MCX4111A-ACAT networking card Fiber 25000 Mbit/s Internal

SKU: MCX4111A-ACAT Category:

Mellanox Technologies MCX4111A-ACAT networking card Fiber 25000 Mbit/s Internal

ConnectX-4 Lx EN network interface card, 25GbE single-port SFP28, PCIe3.0 x8, tall bracket, ROHS R6

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£200.70 £167.25 Ex. VAT

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Mellanox Technologies MCX4111A-ACAT networking card Fiber 25000 Mbit/s Internal

Manufacturer: Mellanox Technologies
Category: Computer Components
Sub-Category: Networking Cards
EAN: 7290107197830


Mellanox MCX4111A-ACAT ConnectX-4 Lx EN Network Interface Card 25GbE Single-Port SFP28 PCIe3.0 x8 ROHS R6

ConnectX-4 Lx EN Network Controller with 10/25/40/50Gb/s Ethernet connectivity addresses virtualized infrastructure challenges, delivering best-in-class and highest performance to various demanding markets and applications. Providing true hardware-based I/O isolation with unmatched scalability and efficiency, achieving the most cost-effective and flexible solution for Web 2.0, Cloud, data analytics, database, and storage platforms.

With the exponential increase in usage of data and the creation of new applications, the demand for the highest throughput, lowest latency, virtualization and sophisticated data acceleration engines continues to rise. ConnectX-4 Lx EN enables data centers to leverage the world’s leading interconnect adapter for increasing their operational efficiency, improving servers’ utilization, maximizing applications productivity, while reducing total cost of ownership (TCO).

ConnectX-4 Lx EN provides an unmatched combination of 10, 25, 40, and 50GbE bandwidth, sub-microsecond latency and a 75 million packets per second message rate. It includes native hardware support for RDMA over Converged Ethernet, Ethernet stateless offload engines, Overlay Networks,and GPUDirect Technology.

High Speed Ethernet Adapter

ConnectX-4 Lx offers the best cost effective Ethernet adapter solution for 10, 25, 40 and 50Gb/s Ethernet speeds, enabling seamless networking, clustering, or storage. The adapter reduces application runtime, and offers the flexibility and scalability to make infrastructure run as efficiently and productively as possible.

I/O Virtualization

ConnectX-4 Lx EN SR-IOV technology provides dedi-cated adapter resources and guaranteed isolation and protection for virtual machines (VMs) within the server. I/O virtualization with ConnectX-4 Lx EN gives data center administrators better server utilization while reducing cost, power, and cable complexity, allowing more Virtual Machines and more tenants on the same hardware.

Overlay Networks

In order to better scale their networks, data center operators often create overlay networks that carry traffic from individual virtual machines over logical tunnels in encapsulated formats such as NVGRE and VXLAN. While this solves network scalability issues, it hides the TCP packet from the hardware offloading engines, placing higher loads on the host CPU. ConnectX-4 Lx EN effectively addresses this by providing advanced NVGRE, VXLAN and GENEVE hardware offloading engines that encapsulate and de-capsulate the overlay protocol headers, enabling the traditional offloads to be performed on the encapsulated traffic for these and other tunneling protocols (GENEVE, MPLS, QinQ, and so on). With ConnectX-4 Lx EN, data center operators can achieve native performance in the new network architecture.

RDMA over Converged Ethernet (RoCE)

ConnectX-4 Lx EN supports RoCE specifications delivering low-latency and high- performance over Ethernet networks. Leveraging data center bridging (DCB) capabilities as well as ConnectX-4 Lx EN advanced congestion control hardware mechanisms, RoCE provides efficient low-latency RDMA services over Layer 2 and Layer 3 networks RDMA over Converged Ethernet (RoCE)

Mellanox PeerDirect ™

PeerDirect™ communication provides high efficiency RDMA access by eliminating unnecessary internal data copies between components on the PCIe bus (for example, from GPU to CPU), and therefore significantly reduces application run time. ConnectX-4 Lx EN advanced acceleration technology enables higher cluster efficiency and scalability to tens of thousands of nodes.

Shop online now or via phone at (855) 897-1098 (+01-512-220-1515 intl) with Mellanox Store, the official online store for Mellanox complete end-to-end solutions (silicon, adapter cards, switch systems, and more) supporting InfiniBand and Ethernet networking technologies. With Mellanox Store you have discovered the most trusted source for purchasing new and refurbished Mellanox equipment. All equipment is guaranteed genuine, ready to deploy and backed by warranty. Need it fast? In stock equipment is ready to ship same day for orders placed by 2:00p CT. Looking for maintenance or have specific licensing needs? No problem, we are also an authorized reseller of Mellanox maintenance contracts and license upgrades for eligible products.

– Manufacturer: Mellanox Technologies Ltd
– Manufacturer Part Number: MCX4111A-ACAT
– Manufacturer Website Address:
– Brand Name: Mellanox
– Product Line: ConnectX-4
– Product Model: MCX4111A-ACAT
– Product Name: ConnectX-4 MCX4111A-ACAT 25Gigabit Ethernet Card
– Packaged Quantity: 1
– Product Type: 25Gigabit Ethernet Card


Ports & interfaces
Internal Yes
PCI version 3.0
Fiber ports quantity 1
Fiber optic connector SFP28
Interface Fiber
Host interface PCI Express
Connectivity technology Wired
Maximum data transfer rate 25000 Mbit/s
Technical details
Product colour Green
PCI Card form factor Full-height (low-profile)
VLAN tagging Yes
iSCSI support Yes
Networking standards IEEE 802.3ba
Jumbo frames support Yes
Maximum data transfer rate 25000 Mbit/s
Auto-negotiation Yes
Auto-negotiation Yes
Product colour Green
Recommended usage Server
Internal Yes
PCI Card form factor Full-height (low-profile)
RoHS compliance Yes
System requirements
Recommended usage Server
Weight & dimensions
Width 69 mm
Depth 142 mm
Packaging data
Quantity 1
RoHS compliance Yes
Packaging content
Quantity 1

Weight 160 kg






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