# Network adapter Supermicro AOC-A25G-B2S-O — dual-port 25GbE PCIe

**URL:** https://aio.lv/en/product--supermicro-aoc-a25g-b2s-o--4462033
**Data updated:** 2026-02-12 14:09 (EET)
**Category:** Network Cards
**Manufacturer:** Supermicro
**Manufacturer code:** AOC-A25G-B2S-O
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 265.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 219.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--supermicro-aoc-a25g-b2s-o--4462033

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

The Supermicro AOC-A25G-B2S-O is a dual-port 25GbE network adapter designed for PCIe slots. It provides two 25 gigabit Ethernet interfaces for high-throughput server and storage connectivity, low-latency data transfer, and improved network capacity. Suitable for data centers, virtualization, and high-performance computing where faster network links and reliable connectivity are required.

## Long description

The Supermicro AOC-A25G-B2S-O — dual-port 25GbE PCIe network adapter provides two 25 gigabit Ethernet interfaces for high-throughput server and storage connectivity. Designed for installation in a PCIe slot, this adapter is intended to deliver increased network capacity and lower latency for environments that demand reliable, high-speed links. The card supports standard server installations and is suitable for integration into rack systems and blade servers that accept full-height PCIe add-in cards.
Advantages
The dual-port 25GbE configuration enables concurrent high-speed connections, improving aggregate bandwidth and providing redundancy options. Low-latency operation and support for modern Ethernet features reduce overhead for virtualization and storage traffic. The PCIe interface offers direct connection to host resources, ensuring consistent throughput for data center workloads.
Suitable for
 Server-to-switch uplinks requiring 25GbE throughput
 High-performance virtualization hosts
 Storage networks and NVMe-over-Fabrics front-end connectivity
 Compute clusters and high-performance computing nodes
 Environments needing increased network capacity and low latency
Key specifications
 Interface: PCI Express (add-in card)
 Number of ports: 2x 25 Gigabit Ethernet
 Data rate per port: 25 Gbps
 Form factor: full-height PCIe adapter
 Designed use: server and data center networking
How to use
Install the adapter into an available PCIe slot on a compatible server following the server manufacturer's hardware installation procedures. Secure the card to the chassis, connect appropriate optical or copper transceivers and fiber/cable assemblies that match the 25GbE interfaces, and configure the host operating system network drivers and firmware as required. After physical installation and cabling, assign IP addressing, configure link aggregation or VLANs as needed, and validate connectivity and throughput with standard network diagnostics.
Usage recommendations
For optimal performance, pair the AOC-A25G-B2S-O with compatible 25GbE switches and use certified transceivers or cables. Keep firmware and drivers up to date and verify server BIOS settings for PCIe lane configuration to ensure full bandwidth. When deploying in virtualization or storage environments, plan network segmentation and quality-of-service settings to maintain low latency and predictable throughput.

## FAQ

### How much does the Network adapter Supermicro AOC-A25G-B2S-O cost, and is it available for purchase?

The price is 265.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 23.07.2026 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 Supermicro 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 Supermicro 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

## Image

https://aio.lv/img/cache/product/4462033/59859958_large.webp