Safe checkout
Secure payments
Fast dispatch
1–2 day handling
Free shipping
U.S. ground
Warranty & RMA
Support after delivery
Mellanox MCX4121A-ACHT 2-Port 25Gbs SFP28 PCIE 3.0 Network Card
- 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
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
| Ports | 2 x 25GbE |
| Connector Type | SFP28 |
| Interface | PCIe 3.0 x8 |
Additional Specifications
| Technology | Ethernet |
| Manufacturer | Mellanox |
| Model | MCX4121A-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 1–2 days handling, 3–7 days in transit.
Purchase orders accepted
Government, enterprise, data center and small business.
Buying 10+ units?
Get volume pricing and availability for MCX4121A-ACHT.
