Home/Network & Accessories/Network Adapters/Mellanox MCX4121A-ACHT 2-Port 25Gbs SFP28 PCIE 3.0...

Safe checkout

Secure payments

Fast dispatch

12 day handling

Free shipping

U.S. ground

Warranty & RMA

Support after delivery

Mellanox MCX4121A-ACHT 2-Port 25Gbs SFP28 PCIE 3.0 Network Card

SKU MCX4121A-ACHT
Brand Mellanox
  • 2-Port 25Gbps Ethernet
  • SFP28 transceiver support
  • PCIe 3.0 x8 host interface
  • Low latency connectivity
  • High-performance networking
  • Ideal for data centers and high-performance computing
  • Supports advanced network features
Available to order

MCX4121A-ACHT isn't on our shelf today — we source it to order. Request a quote and we'll confirm price and lead time within one business day.

Key specifications

See full specs ↓
Ports
2 x 25GbE
Connector Type
SFP28
Interface
PCIe 3.0 x8
Technology
Ethernet
Manufacturer
Mellanox
Model
MCX4121A-ACHT

Product details

This Mellanox ConnectX-4 Lx network interface card features 2 ports of 25Gbps Ethernet connectivity using SFP28 transceivers. It utilizes a PCIe 3.0 x8 interface for high-speed data transfer to the host system.

Technical Information

Ports2 x 25GbE
Connector TypeSFP28
InterfacePCIe 3.0 x8

Additional Specifications

TechnologyEthernet
ManufacturerMellanox
ModelMCX4121A-ACHT

Description

The Mellanox MCX4121A-ACHT is a high-performance dual-port 25 Gigabit Ethernet Network Interface Card (NIC) designed for demanding enterprise and data center environments. Leveraging the ConnectX-4 Lx architecture, this card provides two independent 25Gbps Ethernet ports, each utilizing SFP28 connectors for optical or direct attach copper cabling. The 25Gbps speed offers a significant upgrade over traditional 10GbE, enabling higher throughput for data-intensive applications and faster network communication. This NIC connects to the host system via a PCIe 3.0 x8 interface, ensuring ample bandwidth to support the full speed of both 25Gbps ports without becoming a bottleneck. The ConnectX-4 Lx series is known for its efficiency, low latency, and advanced offload capabilities, which reduce CPU utilization and improve overall system performance. Features such as RDMA (Remote Direct Memory Access) over Converged Ethernet (RoCE) and NVMe over Fabrics (NVMe-oF) support are often included, making it suitable for storage networking and high-performance computing (HPC) clusters. The MCX4121A-ACHT is an ideal choice for modern data centers looking to increase network bandwidth, improve application response times, and build scalable cloud infrastructures. Its dual-port design provides redundancy and the flexibility to connect to multiple network segments or aggregation switches. This card empowers servers with cutting-edge networking capabilities, essential for handling the increasing demands of virtualization, big data analytics, and AI/ML workloads.

Condition: Refurbished

Free U.S. ground shipping

Typically 12 days handling, 37 days in transit.

Purchase orders accepted

Government, enterprise, data center and small business.

Warranty & RMA support

See warranty and returns.

Buying 10+ units?

Get volume pricing and availability for MCX4121A-ACHT.

Questions about this part?

Compatibility, condition, lead times — ask a specialist.

(888) 988-8093

Related products

Loading related inventory…