کارت شبکه ۲۵ گیگابیتی دو پورت SFP28 با چیپ Mellanox ConnectX-5، رابط PCIe 3.0 x8 مدل MCX512A-ACAT

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4.8

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Tomoya

Reviewed in Canada on 12 November 2025

ast, reliable, and perfect for high-speed home or office networks

I’ve been using the Vogzone 25 GBE dual-port NIC for a few weeks in my home server setup, and it’s been impressive. The card is powered by the Mellanox CONNECTX‑5 EN chipset, which makes it feel very robust and reliable, and the dual SFP28 ports provide a smooth 25 Gbps connection on both links. I’ve tested it with multiple devices on my network, and it handles high-bandwidth tasks like transferring large media files and running virtual machines without any noticeable lag or hiccups. The PCIe 3.0 x8 interface ensures the card has enough bandwidth for full speed, and it fits easily in my workstation without blocking other components. Another thing I really appreciate is the overall build quality and design. The card feels solid, and it hasn’t gotten hot even after extended use. Setup was straightforward, and the advanced features like RDMA and hardware offloads are a bonus if you need low-latency performance for storage or network-intensive applications. It’s also compatible with a range of SFP28 modules and DAC cables, which makes it versatile depending on your network infrastructure. Overall, this NIC is a high-performance, dependable upgrade for anyone looking to push beyond 10 GbE, whether for home labs, media servers, or small office networks.

5.0

Mikes Gaming

Reviewed in Canada on 23 August 2025

Drives 25G networking throughput over SFP using Mellanox X5 chipset

Powering this NIC is an embedded Mellanox X5 controller being able to handle 25 GBE high throughput bandwidth for building DIY servers. The interconnect does require some initial configuration, it detects as a ConnectX-5 network processor on Linux but isn't the easiest to setup. Card itself is precision engineered, using MOSFETS and power load balancing since it draws around 28W to 50W off the PCI-E bus connector directly. Heatsink is aluminum using spring loaded standoffs that manages to keep the chipset passively cooled even under benchmarking loads. Despite this, temperatures peaked around 75C to 80C which is on the higher end and better suited to having active server cooling. The card does slot into PCI-E Gen 3 connector and while backwards compatible on Gen 2, its bandwidth becomes limited by the onboard X8 length. Whether its networking GPU servers or connecting up RAID over SFP, the compatibility of this card was mostly plug & play after driver installation. Plugs do rely on SFP connectors which felt durable to slide into minimizing port level wobbling but lacks on proper shielding aside from its aluminum casing to disperse heat. The card PCB itself is multi layered and routes to full PCI-E x8 connector between the chipset. Since it can fit into servers, the included half length bracket is switchable using two screws and thoughtful inclusion.

Salad Spinner

Reviewed in Canada on 28 September 2025

Too fast?

I got this to connect my TrueNAS powered network storage to my network at max speed. My Unifi switch has dual 25gbps SFP+ ports and I was able to get one up and running. I haven't tested whenever Link aggregation works, but it may be a moot point as the two 25gbps ports are the only two at that speed. I also don't have a need for that level of speed... yet! Drivers were easy to come by and setup was relatively painless. Negotiating the connection took some manual input as the auto detect feature on my switch didn't work. So far, this has been an amazing NIC and has taken my data hoarding to a whole new level!

SMB

Reviewed in Canada on 15 September 2025

Fairly decent 2-port/SFP28 25GigE NIC, Mellanox ConnectX-5 chipset, PCIe 3.0 x8, low-profile bracket

This is a fairly decent 2-port 25 GigE NIC (SFP28) utilizing Nvidia/Mellanox ConnectX-5 chipset and PCIe 3.0 x8 (i.e. 64 Gbps) interface. It comes with a low-profile bracket should you have the need for it. Installation and setup is similar to most other NICs and there isn't anything fancy here. Btw, this appears to be a rebranded Lenovo ThinkSystem ConnectX-5 card since it uses Lenovo's driver although it's difficult to know for sure. In any event, you can use the common Twinax cable (copper) or AOC alternatives if you need longer runs (i.e. >= 15 meter) or if EMI is a concern. It's rated at 25 Gbps (3.125 GB/s raw, minus signal and protocol overhead) for each of the 25 GigE ports so at a minimum you'd need an PCIe 3.0 x8 to be able to achieve full speed for both ports simultaneously. If it's plugged into an x4 slot (assuming it's one that's electrically compatible), it'll likely max out at 16 Gbps per port. Given that PCIe 2.0 is almost 20 years old, chances are the motherboard you have would have PCIe 3.0 (or newer) instead which should work just fine as long as it fits (and it should be for ALL MBs) and it's an x8 slot so it can fully utilize all 8 lanes. It works without issues with ESXi 8 U2 and the latest drivers are dated 02/2024 so it's not too bad (for a lab). It's supposed to be supported by ESXi 9 as well but I haven’t tested that. Of course, it will also work with all supported versions of Windows and Linux. I do recommend that you update the drivers to the least for best performance. Performance wise, a quick test shows that it's at least capable of roughly 1.175 GB/s (9.40 Gbps) and that's decent and consistent with most other 10 GigE NICs since I don't have other 25 Gbps links to test. As aforementioned, Etherchannel using LACP won't allow multiple ports to be used simultaneously between any 2 hosts, so you'll still be limited by 10/25 GigE speed still; however, other devices with multiple 10/25 GigE ports or a host with a 2-port NIC such as this can

4.0

2009

Reviewed in Canada on 29 September 2025

Solid 25GbE NIC Upgrade ⚡💻

I tested the Vogzone 25GbE Dual-Port SFP28 NIC in my setup. Installation was smooth, drivers loaded fine, and I hit close to 25Gbps in large transfers 🚀. Compared to the Mellanox MCX512A-ACAT, performance was similar, though Vogzone ran a bit warmer 🔥 and Mellanox felt slightly better on latency. ✅ Pros 1️⃣ Affordable price for dual-port 25GbE 💰 2️⃣ PCIe 4.0 ×8 gives extra bandwidth 🔧 3️⃣ Works well with Windows & Linux 🖥️ ❌ Cons 1️⃣ Latency a bit higher vs Mellanox ⏱️ 👉 Great value if you want fast 25GbE at home or small servers.

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کارت شبکه ۲۵ گیگابیتی دو پورت SFP28 با چیپ Mellanox ConnectX-5، رابط PCIe 3.0 x8 مدل MCX512A-ACAT

مشخصات فنی

درباره محصول

مشخصات فنی

درباره محصول

امتیاز و نظرات

Tomoya

Mikes Gaming

Salad Spinner

SMB

2009

کارت شبکه ۲۵ گیگابیتی دو پورت SFP28 با چیپ Mellanox ConnectX-5، رابط PCIe 3.0 x8 مدل MCX512A-ACAT

مشخصات فنی

درباره محصول

مشخصات فنی

درباره محصول

امتیاز و نظرات

Tomoya

Mikes Gaming

Salad Spinner

SMB

2009