---
product_id: 622709198
title: "25GbE NIC Card for Mellanox MCX4121A-ACAT, PCIe 3.0 x8 25Gb Ethernet NIC with Mellanox ConnectX-4 Lx Chipset, Dual SFP28 Network Card Support RDMA"
brand: "vogzone"
price: "1206 kr"
currency: DKK
in_stock: true
reviews_count: 8
category: "Vogzone"
url: https://www.desertcart.dk/products/622709198-25gbe-nic-card-for-mellanox-mcx4121a-acat-pcie-3-0
store_origin: DK
region: Denmark
---

# 25Gbps blazing data rate Dual SFP28 multi-speed ports PCIe 3.0 x8 ultra-low latency 25GbE NIC Card for Mellanox MCX4121A-ACAT, PCIe 3.0 x8 25Gb Ethernet NIC with Mellanox ConnectX-4 Lx Chipset, Dual SFP28 Network Card Support RDMA

**Brand:** vogzone
**Price:** 1206 kr
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade your network to warp speed with Vogzone’s 25GbE powerhouse!

## Quick Answers

- **What is this?** 25GbE NIC Card for Mellanox MCX4121A-ACAT, PCIe 3.0 x8 25Gb Ethernet NIC with Mellanox ConnectX-4 Lx Chipset, Dual SFP28 Network Card Support RDMA by vogzone
- **How much does it cost?** 1206 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/622709198-25gbe-nic-card-for-mellanox-mcx4121a-acat-pcie-3-0)

## Best For

- vogzone enthusiasts

## Why This Product

- Trusted vogzone brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Blazing 25Gbps Throughput:** Experience lightning-fast data transfers that keep your cloud and data center workflows ahead of the curve.
- • **Broad OS & Server Compatibility:** Plug-and-play with Windows, Linux, VMware, and all major server brands—no compatibility headaches.
- • **SR-IOV & ASAP² Virtualization Tech:** Maximize VM performance and network scalability by offloading CPU tasks directly to the NIC.
- • **Dual SFP28 Ports for Ultimate Flexibility:** Seamlessly connect at 1GbE, 10GbE, or 25GbE speeds to future-proof your network infrastructure.
- • **Cutting-Edge Mellanox ConnectX-4 Lx Chipset:** Harness hardware-based I/O isolation and RDMA for unmatched efficiency and scalability.

## Overview

The Vogzone 25GbE NIC Card, powered by the Mellanox ConnectX-4 Lx chipset, delivers ultra-high 25Gbps data rates via dual SFP28 ports over a PCIe 3.0 x8 interface. Designed for professional-grade data centers and cloud environments, it supports advanced features like RDMA, SR-IOV virtualization, and ASAP² acceleration. Compatible with a wide range of operating systems and server brands, this cost-effective network card ensures seamless integration and exceptional performance for demanding workloads.

## Description

Product description Great Compatibility, Cost-effectiveness Multiple operating systems supported Support Windows, Windows Server, CentOS/RHEL, VMware, Ubuntu, Linux, FreeBSD, etc Compatible with brands of servers Suitable for most server brands in the market, such as Dell, HP, IBM, Intel, Cisco, Lenovo, SUPERMICR, etc Easy to Use

Review: Fast cheap 25/10/1 Ethernet/rdma with dual ports - It’s a 25G dual Mellanox dual Ethernet/rdma card for $100. Seems to work just like the name brand ones. I’ve run it at 25G with direct sfp cable, and 1G with sfp to rj45. I think it does not do 2.5G/5G
Review: Lets you connect to remote drives at local speeds - Used two of these to connect between my NAS and desktop PC. Both machines are running on Windows and neither had an issue working as soon as the network card was installed. My devices are relatively close so I am currently using DAC cables. In testing a file share in between my NVMe drive on the NAS and local PC I was able to get a transfer speed of 2.24GB/s, around 2,240 MB/s or ~19Gbps without any network adjustment or tuning whatsoever. The NVMe drives should be a bit faster than that but this was good enough for me, until I get more remote NVMe storage only a fraction of my data is available at these speeds anyways. HardwareIDs below as reported from device manager PCI\VEN_15B3&DEV_1015&SUBSYS_006915B3&REV_00 PCI\VEN_15B3&DEV_1015&SUBSYS_006915B3 PCI\VEN_15B3&DEV_1015&CC_020000 PCI\VEN_15B3&DEV_1015&CC_0200

## Features

- 【Controller】: 25GbE PCI-E NIC with Original Mellanox ConnectX-4 Lx controller, which provide 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.
- 【Data Rate】:Dual SFP28 Ports(1GbE/10GbE/25GbE) let you connect to network cable for meeting the demands of data center environments.PCIe v3.0 (8.0GT/s) x8(Compatible with 2.0/1.1); X8/X16 Lane.
- 【Technical Support】:iPXE, DPDK, iSCSI, TCP/IP, UDP/IP, Jumbo Frames, RDMA（RoCE v1, RoCE V2）,ASAP², VMDq, SR-IOV, RSS, IPsec.
- 【Supported Operating Systems】:Windows; Windows Server; Linux Stable Kernel version; Ubuntu; Vmware ESXi; Citrix XenServer; Deepin; RHEL/CENTOS; Freebsd; OFED AND WINOF-2; Mikrotik; Debian; BCLINUX; ALIOS; Euler; KYLIN; etc.
- 【I/O virtualization, multi-VM support】：SR-IOV technology enables efficient management of I/O resources of virtual machines by sharing physical resources. And Infiniband technology fully meets the needs of high bandwidth and low latency in big data, its aggregation on virtual I/O and flat network architecture provide a huge pipeline that can be dynamically distributed on demand to improve availability and load balancing.
- 【ASAP²】: The groundbreaking NVIDIA ASAP² technology delivers innovative SR-IOV and VirtIO acceleration by offloading Open vSwitch datapath from the host’s CPU to the adapter to enable extreme performance and scalability.
- 【What you Get】: Vogzone 25GbE PCI-E X8 Network Card MCX4121A-ACAT-25G (compare to Mellanox MCX4121A-ACAT ) x1, Low-profile Bracket x1.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D1J86R1G |
| Best Sellers Rank | #65 in Internal Computer Networking Cards |
| Brand | Vogzone |
| Built-In Media | 1* Low Profile Brackets, 1* NIC |
| Color | MCX4121A-ACAT-25G(2*SFP28) |
| Compatible Devices | Desktop |
| Customer Reviews | 4.6 out of 5 stars 52 Reviews |
| Data Link Protocol | Ethernet |
| Data Transfer Rate | 25 Gigabytes Per Second |
| Hardware Interface | Ethernet |
| Item Dimensions L x W x H | 8.8"L x 5.9"W x 1.1"H |
| Manufacturer | Vogzone |
| Product Dimensions | 8.8"L x 5.9"W x 1.1"H |
| Warranty Description | 3-Year Free Warranty |

## Product Details

- **Brand:** Vogzone
- **Hardware Interface:** Ethernet
- **Color:** MCX4121A-ACAT-25G(2*SFP28)
- **Compatible Devices:** Desktop
- **Product Dimensions:** 8.8"L x 5.9"W x 1.1"H
- **Data Link Protocol:** Ethernet
- **Data Transfer Rate:** 25 Gigabytes Per Second
- **Manufacturer:** Vogzone

## Images

![25GbE NIC Card for Mellanox MCX4121A-ACAT, PCIe 3.0 x8 25Gb Ethernet NIC with Mellanox ConnectX-4 Lx Chipset, Dual SFP28 Network Card Support RDMA - Image 1](https://m.media-amazon.com/images/I/61Yfe+cEfgL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fast cheap 25/10/1 Ethernet/rdma with dual ports
*by J***F on November 25, 2025*

It’s a 25G dual Mellanox dual Ethernet/rdma card for $100. Seems to work just like the name brand ones. I’ve run it at 25G with direct sfp cable, and 1G with sfp to rj45. I think it does not do 2.5G/5G

### ⭐⭐⭐⭐⭐ Lets you connect to remote drives at local speeds
*by B***D on March 2, 2025*

Used two of these to connect between my NAS and desktop PC. Both machines are running on Windows and neither had an issue working as soon as the network card was installed. My devices are relatively close so I am currently using DAC cables. In testing a file share in between my NVMe drive on the NAS and local PC I was able to get a transfer speed of 2.24GB/s, around 2,240 MB/s or ~19Gbps without any network adjustment or tuning whatsoever. The NVMe drives should be a bit faster than that but this was good enough for me, until I get more remote NVMe storage only a fraction of my data is available at these speeds anyways. HardwareIDs below as reported from device manager PCI\VEN_15B3&DEV_1015&SUBSYS_006915B3&REV_00 PCI\VEN_15B3&DEV_1015&SUBSYS_006915B3 PCI\VEN_15B3&DEV_1015&CC_020000 PCI\VEN_15B3&DEV_1015&CC_0200

### ⭐⭐⭐⭐⭐ Works as expected.
*by S***R on July 9, 2025*

I've bought around sixteen of these and they've all been solid. I don't have any brands/models to compare them to. So, I don't know if they could be any better. Nevertheless, I'm getting pretty close to full 25GiB in speed tests. I'm using these with Mikrotik switches and 10Gtek transceivers.

## Frequently Bought Together

- Vogzone 25GbE NIC Card for Mellanox MCX4121A-ACAT, PCIe 3.0 x8 25Gb Ethernet NIC with Mellanox ConnectX-4 Lx Chipset, Dual SFP28 Network Card Support RDMA
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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-24*