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Item #:
200033885
CX4121A Dual 25Gb/s SFP28 Fiber Ports Intelligent RDMA Ethernet Adapter for Virtualization and Storage Servers, Mellanox ConnectX-4 Lx EN MT27711A0
Item #:
200033885
BND 154
Price Details
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Imported from USA store
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Order now and get it around Tuesday, August 18
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CX4121A offers a cost-effective and flexible ethernet adapter solution for Web 2.0, cloud, data analytics, database, and storage platforms.
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What Stands Out
High-Speed Connectivity
Equipped with dual 25GbE SFP28 fiber ports, this NIC card delivers exceptional bandwidth, ensuring fast data transfers for virtualization and storage servers, outperforming standard Ethernet solutions.
Intelligent RDMA Support
Incorporating advanced RDMA technology, this adapter significantly reduces CPU overhead. It enhances application performance, making it ideal for data-intensive environments in virtualization and storage.
Optimized Performance
Utilizing the Mellanox ConnectX-4 Lx EN MT27711A0, it provides robust optimization features, delivering reliable, high-quality performance in demanding server applications compared to competitors.
Product Details
| Hardware Interface | PCI Express 3.0, PCI Express x8 |
| Compatible Devices | Desktop |
| Data Link Protocol | Ethernet |
| Data Transfer Rate | 25000 Megabytes Per Second |
| Compatible Operating System Family | Linux, Windows |
| Minimum Required Operating System Version | Windows 10 |
| Item Dimensions L x W x H | 4.72"L x 5.91"W x 0.71"H (12 x 15 x 1.8 cm) |
| Item Weight | 100 Grams |
| Brand | LinksTek |
| Manufacturer | LinksTek Co,Ltd |
| Mfr Part Number | CX4121A |
| Model Number | CX4121A |
| Unit Count | 1.0 Count |
| Product Dimensions (L x W x H) | 4.72"L x 5.91"W x 0.71"H (12 x 15 x 1.8 cm) |
| Number of Packs | 1 |
Who Should Buy?
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Data Centers
Ideal for data centers requiring high-speed networking for storage and virtualization applications with low latency.
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Virtualization Environments
Perfect for virtualization environments needing fast data transfer rates and efficient resource allocation among multiple VMs.
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High-Performance Computing
Well-suited for high-performance computing tasks that demand high bandwidth and low latency connections between servers.
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Casual Users
Not suitable for casual or home users who do not require high-speed networking or advanced features.
Product Description
CX4121A Dual 25Gb/s SFP28 Fiber Ports Intelligent RDMA Ethernet Adapter for Virtualization and Storage Servers, Mellanox ConnectX-4 Lx EN MT27711A0 Ethernet Controller, 2X 25GbE PCIE 3.0 x8 NIC Card
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Customer Questions & Answers
-
Question:
What operating systems are compatible with the CX4121A?
Answer: The CX4121A is compatible with Windows 11, 10, Server 2012, 2016, 2019, 2022, as well as RHEL, CentOS, FreeBSD, and VMware. -
Question:
What is the maximum bandwidth of the CX4121A?
Answer: The CX4121A provides a total bandwidth of 64Gb/s with its PCI Express Gen 3.0 standard X8 interface. -
Question:
Does the CX4121A support virtualization technologies?
Answer: Yes, it supports I/O virtualization with SR-IOV technology for better resource management and isolation for virtual machines.
LinksTek Network Cards CX4121A Editorial Review
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Pros
- High-speed connectivity
- Supports virtualization
- Reliable performance
- Enhanced storage solutions
- Easy to install
Cons
- May be overkill for small setups
Platform Trust & Buyer Confidence
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Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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23-Jul-26 · via Trustpilot
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23 July 2026 · via Trustpilot
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BND 154
Order now and get it around Tuesday, August 18
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Dual 25GbE SFP28 Fiber Ports for high-speed connectivity.
- Supports RDMA over Converged Ethernet (RoCE) for low-latency performance.
- Backed by the high-performance Mellanox ConnectX-4 Lx EN controller.
- Seamless I/O virtualization with SR-IOV technology for improved server utilization.
- Compatible with major operating systems including Windows, RHEL, and VMware.
- Ensures maximum bandwidth with PCI Express Gen 3.0 interface.
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