# Network Card Mellanox Technologies MCX512A-ACAT 25000 Mbit/s Internal Fiber PCI Express

**URL:** https://aio.lv/en/product--nvidia-900-9x5az-0053-0t3--10500170
**Data updated:** 2026-01-03 12:50 (EET)
**Category:** Network Cards
**Manufacturer:** NVIDIA
**Manufacturer code:** 900-9X5AZ-0053-0T3
**EAN:** 7290108480542
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 450.49 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 372.31 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--nvidia-900-9x5az-0053-0t3--10500170

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 28.07.2026 | free |
| Pickup points | 31.07.2026 | 1.89 EUR |
| Courier delivery to door | 31.07.2026 | 4.99 EUR |

## Summary description

The Mellanox Technologies MCX512A-ACAT is an internal network card that provides a maximum data transfer rate of 25000 Mbit/s. It utilizes PCI Express interface and fiber connectivity technology, making it ideal for high-speed data applications and efficient network performance.

## Long description

The Mellanox Technologies MCX512A-ACAT is a high-performance internal network card designed for demanding environments such as high-performance computing, cloud and storage platforms, and Web2.0 services. This PCI Express fiber network adapter supports advanced RDMA and application offload capabilities, offering two 100Gb Ethernet-capable ports in the ConnectX-5 family while remaining compatible with systems requiring a 25,000 Mbit/s maximum data transfer rate per the product data.
Advantages
This network card provides low sub-600ns latency and extremely high message rates, with hardware offloads for PCIe switching and NVMe over Fabrics to reduce CPU load. Its RDMA support and advanced offload features improve throughput and efficiency in machine learning, data analytics, cloud and storage workloads. The fiber interface and PCI Express host connection ensure reliable wired connectivity and high-speed data transfer.
Suitable for
High-Performance Computing (HPC) clusters
Machine learning and data analytics servers
Cloud and Web2.0 service infrastructures
Storage platforms using NVMe over Fabrics
Key specifications
Brand: NVIDIA (Mellanox Technologies)
Model: MCX512A-ACAT (ConnectX-5 family)
Manufacturer part number (MPN): 900-9X5AZ-0053-0T3
EAN: 7290108480542
Connectivity technology: Wired (fiber)
Host interface: PCI Express
Interface type: Fiber
Maximum data transfer rate: 25000 Mbit/s
How to use
Install the MCX512A-ACAT into an available PCI Express slot on a compatible server or workstation following the host system vendor and card installation guidelines. Connect fiber cables to the adapter ports and configure network settings on the operating system or hypervisor. For RDMA and NVMe over Fabrics features, enable and configure the appropriate drivers and firmware provided by the vendor and verify network fabric settings to match performance and offload requirements.
Usage recommendations
Use vendor-supplied drivers and firmware updates, validate fiber transceiver compatibility, and ensure the host platform and switch fabric support ConnectX-5 features (RDMA, NVMe-oF and PCIe offloads). Monitor latency and throughput under real workloads to tune settings for optimal performance.

## Specifications

### Ports & interfaces

| Feature | Value |
|---|---|
| Connectivity technology | Wired |
| Interface | Fiber |
| Host interface | PCI Express |
| Internal | Yes |
| Fiber ports quantity | 2 |
| Fiber optic connector | SFP, SFP+, SFP28 |

| Feature | Value |
|---|---|
| Sustainability certificates | RoHS |

### Bandwidth

| Feature | Value |
|---|---|
| Maximum data transfer rate | 25000 Mbit/s |

## FAQ

### How much does the Network Card Mellanox Technologies MCX512A-ACAT cost, and is it available for purchase?

The price is 450.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 94 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 28.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All NVIDIA products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized NVIDIA service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: connectivity technology, interface, host interface, maximum data transfer rate, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/10500170/54743643_large.webp