SKU: 97831964992

Cisco MCX512A-ACAT NIC (ConnectX-5)

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Description

Cisco MCX512A-ACAT NIC (ConnectX-5)The Cisco MCX512A ACAT NIC (ConnectX 5) is a high performance, plug in network interface card engineered for demanding data centers, servers, and workstations. Built on NVIDIAs ConnectX 5 architecture, this 2 port 25Gigabit Ethernet adapter delivers exceptional throughput and reliable connectivity through a PCI Express x8 interface and optical fiber SFP28 support. With up to 4000 MB s of aggregate bandwidth, it provides a robust foundation for

The Cisco MCX512A-ACAT NIC (ConnectX-5) is a high-performance, plug-in network interface card engineered for demanding data centers, servers, and workstations. Built on NVIDIA’s ConnectX-5 architecture, this 2-port 25Gigabit Ethernet adapter delivers exceptional throughput and reliable connectivity through a PCI Express x8 interface and optical fiber SFP28 support. With up to 4000 MB/s of aggregate bandwidth, it provides a robust foundation for bandwidth-intensive applications, virtualization workloads, and cloud deployments where consistent performance matters. This NIC is designed to maximize efficiency in multi-tenant environments and to help you scale your network infrastructure as your demands grow. Whether you’re assembling a new data center rack, upgrading an existing server, or equipping a high-performance workstation, the MCX512A-ACAT offers a balance of speed, flexibility, and reliability that IT professionals rely on every day.

  • Dual-port configuration: Two 25GbE connections delivered through SFP28 optical fiber allow you to create scalable network links, enabling link aggregation, high-availability configurations, and improved traffic distribution across multiple servers and storage nodes.
  • PCI Express x8 form factor: A PCIe x8 plug-in card that fits standard server, workstation, and data-center motherboards, providing a straightforward upgrade path that minimizes chassis changes while maximizing slot bandwidth for fast data transfers.
  • ConnectX-5 performance: Powered by NVIDIA’s ConnectX-5 architecture, this NIC is engineered for high-throughput networking with efficient data handling, low latency, and robust compatibility with modern data-center workloads and virtualization environments.
  • Optical fiber with SFP28: Supports SFP28 optical transceivers for flexible, long-distance fiber connectivity, enabling fast, reliable links between servers, switches, and storage arrays across distances that copper-based interfaces may not cover.
  • Designed for demanding workloads: The MCX512A-ACAT is built to deliver steady, dependable performance for data centers, cloud infrastructure, HPC, and enterprise applications while maintaining compatibility with enterprise-grade hardware ecosystems.

Technical Details of Cisco MCX512A-ACAT NIC (ConnectX-5)

  • Get this information from the "specifications" section of the product from https://ec.synnex.com/ using product "UPC" or "SKU" as reference

How to install Cisco MCX512A-ACAT NIC (ConnectX-5)

Installing the Cisco MCX512A-ACAT NIC is designed to be a straightforward process for qualified IT staff. Follow these general steps to add the NIC to a compatible server or workstation and begin using 25GbE connectivity.

  • Power down the system and unplug the power supply to ensure safe installation.
  • Open the server or workstation chassis and locate an available PCI Express x8 (or larger) slot on the motherboard or PCIe riser card.
  • Remove the slot cover and insert the MCX512A-ACAT NIC firmly into the PCIe x8 slot, ensuring the connector engages with the slot and seats fully.
  • Secure the card with the chassis screw or retention mechanism to prevent movement during operation.
  • Reconnect any necessary power rails if required by your chassis, then close the chassis and reconnect power.
  • Install the appropriate NVIDIA/Cisco drivers and management utilities as indicated by your operating system and ensure the NIC is detected by the system.
  • Insert SFP28 optical transceivers compatible with your fiber network, connect the fiber cables to the transceivers, and verify link status in the OS and hardware management tools.
  • Power on the system, verify the NIC appears in device managers or the system’s PCIe topology, and configure network interfaces, VLANs, and any required offload features or virtualization settings as needed.

Frequently asked questions

  • What is the maximum bandwidth of the MCX512A-ACAT NIC? The device provides up to 4000 MB/s aggregate bandwidth across its two 25GbE ports, with individual port speeds of 25Gbps when fully utilized.
  • What connectivity does it use? It uses SFP28 optical fiber connectors for high-speed fiber links, enabling long-range connections between servers, storage, and switches.
  • What interface does it require? It is a PCI Express x8 plug-in card, suitable for modern servers and workstations with available PCIe slots.
  • How many ports does the card have and what type are they? It has two 25Gigabit Ethernet ports, optimized for multi-link configurations and scalable networking.
  • Is this NIC compatible with standard data center hardware? The MCX512A-ACAT is designed for enterprise data centers, cloud environments, and high-performance workstations; ensure your server platform supports PCIe x8 and SFP28 fiber connectivity and that you have the appropriate drivers and transceivers.
  • Do I need to purchase transceivers separately? Yes. SFP28 optical transceivers are typically sold separately and must be compatible with your fiber network and Cisco/NVIDIA drivers and firmware.
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Exchange/Return Notes
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SKU: 97831964992

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4.4 ★★★★★
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Grammar Guru
Grantham, US
★★★★★ 5
Very nice kit: Beware it is NOT heavy duty plumbing pipe though!
Size: side table leg
I want to give this kit a high rating, but I need to address the "truth in advertising" bit since there may be an important disconnect between what you think you are getting and what actually comes in the box. Black plumbing used for shelving or table legs is part of an important niche in interior design. I like the industrial loft look myself and have a variety of glass, steel, and masonry elements in my home. This kit fits that look and provides plenty of "strength" for most domestic uses, like shelves or coffee tables. But they are NOT "industrial pipe" or "maximum durability pipe." Note the phrase "cast iron finish feet," which together with the other claims might lead you to think these are cast plumbing fittings. They are NOT! The feet and flanges feel like electrical conduit fittings, and the pipe sections are likely aluminum. They might be electrical or they might be multi-use, lightweight pipe. While all this might lead you to think that you're getting a truly retro, heavy-duty pipe kit made of black plumbing pipe, you are not. But, does it matter? Depends. I find the lighter pipe's smooth finish a nice "tone-down" from the rough plumbing look. All together, this kit provides plenty of strength for most furniture and the rustic pipe look, but with a nicer, lighter finish. To me that is a plus--this is a very nice kit and costs less that if you'd pieced it together from real plumbing parts (I priced it out to compare), and looks retro but cleaner. I knew what to expect because while I got this kit free on Vine, I had purchased a nearly identical kit from another seller last year. So, I'm giving it 5 stars for what it actually is and for the price, JUST BE AWARE THE NARRATIVE IS MISLEADING. Which is unfortunate because just like some people might want the heavier pipe, I'm betting more would be attracted to the look with a cleaner, lighter feel.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 31, 2025
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Verified Purchase
franny
Lake Worth, US
★★★★★ 5
Great project & great quality
Size: 38"Height × 14" Wide, Size: 38"Height × 14" Wide
These legs were used on a 26”x72” DIY quilting ironing table. The Mdjwjj Industrial Pipe Counter Bar Height Table Leg, Metal Table Legs, Iron Base are sturdy & made of real metal, nothing cheap about this product. Legs were easy to install. Highly recommend
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Reviewed in the United States on June 11, 2025
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Verified Purchase
Sammy.
Port Orchard, US
★★★★★ 5
Very good
Size: 38"Height × 14" Wide
It look nice and it worked very good, build strong
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Reviewed in the United States on February 6, 2026
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K Younger
Lake Worth, US
★★★★★ 5
Do it yourself
Size: 38"Height × 14" Wide
I purchased a similar set to custom make a dining room table out of butcher block, and it turned out perfect. So with the left over butcher block I purchased these legs and made the perfect kitchen island to match. It is very sturdy and a great price. Everyone wants to know where I purchased it from. I also put a piece of the butcher block across the lower bars and made a lower shelf. Love love love this.
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Reviewed in the United States on December 2, 2025
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Verified Purchase
Tani
Battle Creek, US
★★★★★ 4
Plan your project right & these will look great!
Size: 38"Height × 14" Wide
These are great legs for a table. They are sturdy and go together nicely. The painted finish is well done, meaning it doesn't scratch or peel or come off easily. Also the way things were packaged was considerate of the weight and possibility of damage during shipment. There were even extra attachment screws included which was helpful since I lost one under the dishwasher. When considering what legs to purchase for your particular table, the height, dimensions, and weight of the top all need to be factored in. I used these bar height legs under a very heavy, 7' long X 2' wide top. Common physics dictates that there will be lateral movement between the 2 "H" shaped leg sets. There HAS to be support between the 2 H leg sets to prevent that lateral movement. So these alone will not support a long table very well, because physics. This is not in any way the fault of this product. Be aware that there is more to the stability equation and be prepared to add cross bracing to your project.
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Reviewed in the United States on April 4, 2025

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