The product arrived, just need to test it.
Mellanox ConnectX-4 25GbE PCI-E Network Interface Card
Efficient 25 Gigabit Ethernet NIC PCI-E card with heat dissipation support, ideal for high-performance server networks.
304 in stock
High-speed Network Interface
The Mellanox ConnectX-4 CX4121A NIC delivers reliable 25 Gigabit Ethernet performance, ideal for demanding server and data center applications.
Its PCI Express 3.0 interface ensures fast data transfer between the network and the host system, minimizing bottlenecks.
Robust Construction and Cooling
Designed with integrated heat dissipation features to maintain stable operation during intensive network workloads.
- Heat dissipation support for durability
- Efficient thermal management for consistent performance
Optimized for Ethernet Server Use
Specifically designed for wired Ethernet networks in server environments, supporting optical fiber interfaces to meet modern networking standards.
- Ideal for high-performance networking in servers
- Supports optical fiber connections for enhanced speed and reliability
Reliable Brand and Quality Assurance
Manufactured by CTvbs under high technical standards, ensuring quality components and adherence to international norms.
Winners Industrial(HK) Limited oversees distribution with a focus on innovation and customer service.
Key specifications
- Model: MCX4121A-ACAT (ConnectX-4)
- Network Speed: 25 Gigabit Ethernet
- Interface Type: PCI Express 3.0
- Wired Interface: Optical fiber
- Heat Dissipation: Supported
- Application: Server networking
What's in the box
- Mellanox ConnectX-4 CX4121A 25GbE Network Interface Card
Frequently asked questions
01 What is the model number of this network card?
The model number of this network card is MCX4121A-ACAT, part of the Mellanox ConnectX-4 series.
02 What type of interface does this NIC use?
This NIC uses a PCI Express (PCI-E) interface for connectivity to the motherboard.
03 What network speed does this card support?
It supports 25 Gigabit Ethernet speeds for high-performance networking.
04 Is this card compatible with wireless networks?
No, this is a wired network interface card designed for Ethernet networks only.
05 Does the card support heat dissipation?
Yes, the card supports heat dissipation to maintain optimal operating temperatures.
06 What applications is this network card intended for?
It is intended primarily for server applications requiring high-speed Ethernet connectivity.
07 What type of wired interface does this card use?
The card uses an optical fiber wired interface for network connectivity.
08 Is Bluetooth supported by this network card?
No, this card does not support Bluetooth connectivity.
09 Where is this product manufactured?
This network card is manufactured in Mainland China.
10 Are there any wireless communication standards supported?
No, the card does not support any wireless communication standards.
Discussion
Product as advertised
I purchased from here twice, and the first card had a defect that prevented the creation of the SR-IOV VF, so I returned it. The second card had a different manufacturing date from the first one but was in perfect working condition with no issues. If the VF creation fails, it seems that setting NUM_OF_VFS to a value less than 4 might work. If it still fails, it's likely a defective product. Since it's a genuine PSID, it can be updated with the original firmware without any issues.
I returned the counterfeit product and purchased this one instead.
It was recognized without any issues on Windows 11 and linked with 10 gigabytes. I think this is a store where you can buy with peace of mind.
The product box was crushed, but the product itself was undamaged.
I also ran a speed test using iperf3 and confirmed that it achieved speeds comparable to the mellanox cx4121a connectx-4 i already have installed.
Thank you for doing business with us this time. If they could improve their packaging for international shipments, this would be an excellent retailer.
