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Mellanox MCX4121A-ACAT ConnectX-4 Lx 25GbE SFP28 Network Adapter

Mellanox MCX4121A-ACAT ConnectX-4 Lx 25GbE SFP28 Network Adapter
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Mellanox MCX4121A-ACAT ConnectX-4 Lx 25GbE SFP28 Network Adapter
  • Product id:  5690
  • Stock: In Stock
  • Brand: Mellanox
  • Model: MCX4121A-ACAT
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Key Features

  • Enterprise 25GbE Dual-Port SFP28 Ethernet Network Adapter
  • PCI Express 3.0 x8 interface
  • Supports RoCE v1/v2, SR-IOV, NVMe-oF & VXLAN Offload
  • Optimized for Enterprise Servers, Cloud & Data Centers
Hotline Support: (10am - 8pm)
Get a Quote: Our team is ready to help
Email: sales@datacom.com.bd
Description

About Mellanox MCX4121A-ACAT ConnectX-4 Lx 25GbE SFP28 Network Adapter in Bangladesh

The Mellanox MCX4121A-ACAT ConnectX-4 Lx 25GbE SFP28 Network Adapter is a high-performance enterprise Ethernet adapter designed for modern data centers, cloud infrastructure, virtualization platforms, software-defined storage, and high-performance computing (HPC). Powered by the Mellanox ConnectX-4 Lx EN controller, it delivers exceptional throughput, ultra-low latency, and advanced hardware acceleration for demanding enterprise networking workloads.

Featuring dual 25GbE SFP28 ports with a PCI Express 3.0 x8 interface, the adapter provides up to 50Gbps aggregate bandwidth while maintaining excellent power efficiency. It supports both 25GbE and 10GbE operation through compatible SFP28/SFP+ optics and Direct Attach Copper (DAC) cables, making it ideal for both existing and next-generation Ethernet infrastructures.

The adapter supports advanced networking technologies including RoCE v1/v2, SR-IOV, NVMe over Fabrics (NVMe-oF), VXLAN, NVGRE, GENEVE tunnel offloads, TCP/IP checksum offload, Receive Side Scaling (RSS), Large Send Offload (LSO), Large Receive Offload (LRO), VLAN tagging, and advanced Quality of Service (QoS). These capabilities reduce CPU utilization while maximizing network and application performance.

Whether deploying VMware virtualization, Microsoft Hyper-V, Linux KVM, OpenStack cloud, AI infrastructure, or high-speed enterprise networking, the Mellanox MCX4121A-ACAT delivers enterprise-grade reliability, scalability, and low-latency Ethernet connectivity.

Buy Mellanox MCX4121A-ACAT ConnectX-4 Lx 25GbE SFP28 Network Adapter in Bangladesh

Looking for the original Mellanox MCX4121A-ACAT ConnectX-4 Lx 25GbE SFP28 Network Adapter in Bangladesh? Datacom Technologies (BD) supplies genuine Mellanox (NVIDIA Networking) products with competitive pricing, expert technical consultation, and dependable after-sales support.

Compatibility

  • Enterprise Rack Servers
  • PCI Express 3.0 x8 Compatible Servers
  • 25GbE & 10GbE Ethernet Networks
  • SFP28 Optical Transceivers
  • SFP28 Direct Attach Copper (DAC) Cables
  • VMware ESXi
  • Microsoft Windows Server
  • Linux (RHEL, Ubuntu, SUSE)
  • Microsoft Hyper-V
  • KVM Virtualization
  • OpenStack Cloud

Mellanox MCX4121A-ACAT Specifications & Overview

Specification Details
Product TypeEthernet Network Adapter
Product NameMellanox MCX4121A-ACAT ConnectX-4 Lx 25GbE SFP28 Network Adapter
BrandMellanox (NVIDIA Networking)
ModelMCX4121A-ACAT
ControllerMellanox ConnectX-4 Lx EN
Port ConfigurationDual Port
Network Speed2 × 25GbE
Host InterfacePCI Express 3.0 x8
Connector Type2 × SFP28
Supported Speeds25GbE / 10GbE
Supported MediaSFP28 Optical Modules, DAC Cables
Supported ProtocolsEthernet, RoCE v1/v2, NVMe-oF
Supported FeaturesSR-IOV, VXLAN, NVGRE, GENEVE Offload, RSS, LSO, LRO, VLAN Tagging, QoS
Form FactorLow Profile PCIe Adapter

Applications

  • Enterprise Data Centers
  • Cloud Computing
  • Virtualization Platforms
  • Software-Defined Storage
  • NVMe over Fabrics
  • AI Infrastructure
  • High Performance Computing (HPC)
  • Database Servers
  • Private Cloud Deployments
  • Enterprise Networking

Benefits of Choosing This Product

The Mellanox MCX4121A-ACAT provides enterprise-grade dual-port 25GbE networking with ultra-low latency, RoCE support, NVMe over Fabrics acceleration, advanced virtualization features, and excellent compatibility with modern enterprise operating systems.

Why Buy from Datacom Technologies (BD)?

Datacom Technologies (BD) is a trusted supplier of enterprise servers, storage systems, networking equipment, and data center hardware in Bangladesh. We provide genuine Mellanox networking products, competitive pricing, expert technical consultation, and dependable after-sales support.

  • Call/WhatsApp: +8801748173213
  • Email: sales@datacom.com.bd
  • Alternative Email: datacomtechnologiesbd@gmail.com
  • Office: Tropical Center, 218, Dr. Kudroti Khuda Road, New Elephant Road, Dhaka-1205, Bangladesh.

Frequently Asked Questions (FAQ)

Q1: Is this a dual-port network adapter?
Yes. It features two 25GbE SFP28 ports.

Q2: Does it support 10GbE?
Yes. It supports both 25GbE and 10GbE operation with compatible optics and cables.

Q3: Does it support RoCE?
Yes. It supports both RoCE v1 and RoCE v2 for RDMA networking.

Q4: Does it support NVMe over Fabrics?
Yes. It supports NVMe-oF acceleration for high-performance storage networking.

Q5: Which virtualization platforms are supported?
VMware ESXi, Microsoft Hyper-V, Linux KVM, and OpenStack are fully supported.

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What is the price of Mellanox MCX4121A-ACAT ConnectX-4 Lx 25GbE SFP28 Network Adapter in Bangladesh 2026?

The latest price of Mellanox MCX4121A-ACAT ConnectX-4 Lx 25GbE SFP28 Network Adapter in Bangladesh is available on request. Product prices may vary depending on brand, model, specification, stock availability, warranty, and current market condition. Please call or WhatsApp Datacom Technologies (BD) to get the updated price, availability, and official quotation.

You can buy original Mellanox MCX4121A-ACAT ConnectX-4 Lx 25GbE SFP28 Network Adapter in Bangladesh from Datacom Technologies (BD) with expert guidance, genuine product assurance, and after-sales support. For the best deal, current stock status, and product recommendation, contact our sales team today.