# BlueOptics Q28-AOC-25M-NK-BO InfiniBand fibre optic cable 25m OM3

**URL:** https://aio.lv/en/product--blueoptics-q28-aoc-25m-nk-bo--5040425
**Data updated:** 2026-02-25 16:37 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** Q28-AOC-25M-NK-BO
**EAN:** 4063232107370
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 341.99 €
**Prices and availability valid until:** 2026-08-21 23:59
**Price without VAT (21%):** 282.64 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-q28-aoc-25m-nk-bo--5040425

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 19.08.2026 | free |
| Pickup points | 24.08.2026 | 1.79 EUR |
| Courier delivery to door | 24.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics Q28-AOC-25M-NK-BO is a 25m InfiniBand fibre optic cable designed for high-speed data transfer. It features OM3 fibre type with a core diameter of 50 µm and QSFP28 connectors on both ends, ensuring reliable connectivity for data centers and high-performance computing environments.

## Long description

The BlueOptics Q28-AOC-25M-NK-BO InfiniBand fibre optic cable 25m OM3 is an active optical cable (AOC) with QSFP28 connectors on both ends, designed for 100G high-speed transmissions over short distances. It uses OM3 multimode fibre with a 50 µm core diameter and LSZH (low smoke zero halogen) sheath for reduced smoke and no halogen emissions. The built-in optical-electrical conversion in each connector enables hot-pluggable QSFP28-to-QSFP28 connections for servers, switches and network devices within racks or between adjacent racks.
Advantages
Compared to passive twinax solutions, this BlueOptics AOC offers lower weight, greater flexibility and a smaller bend radius while maintaining high 100GBASE-SR4 performance. The QSFP28 transceiver connectors comply with MSA, SFF and IEEE specifications and include integrated I/O and O/E converters for reliable signal conversion. The cable is factory-tested and assembled from quality components to meet CE and RoHS guidelines and common industrial standards.
Suitable for
Short-reach 100G connections between network switches and servers in data centres
High-performance computing clusters requiring low-latency InfiniBand links
Inter-rack connectivity within the same equipment room or adjacent racks
Environments where reduced cable weight and improved bend radius are needed
Key specifications
Cable type: Active Optical Cable (AOC)
Connector type: QSFP28 to QSFP28 (hot-pluggable)
Length: 25 m
Fibre type: OM3 multimode
Core diameter: 50 µm
Data rate support: 100G (100GBASE-SR4)
Sheath: LSZH (low smoke, zero halogen)
Bend radius: smaller than typical twinax; designed for improved flexibility
How to use
Insert each QSFP28 connector into the corresponding QSFP28 port on the network devices until the connector latches. The built-in transceivers perform the electrical-to-optical and optical-to-electrical conversion automatically; no additional modules are required. Ensure both ends are clean and free of dust before connecting and route the cable to avoid tight bends that could stress the fibre despite its improved bend radius. The AOC supports hot-plug operation, so it can be connected or removed while devices are powered on if the system supports hot-plugging.
Usage recommendations
Inspect connector ferrules with appropriate cleaning tools or lint-free wipes before each installation. Avoid sharp bends and excessive pulling force; secure the cable with gentle cable management to maintain performance and longevity.

## Specifications

| Feature | Value |
|---|---|
| Cable length | 25 m |
| Product colour | Aqua colour |
| Connector 1 | QSFP28 |
| Connector 2 | QSFP28 |
| Core diameter | 50 µm |
| Cladding diameter | 125 µm |
| Jacket material | Low smoke zero halogen (LSZH) |
| Connector 1 gender | Male |
| Connector 2 gender | Male |
| Fibre optic type | OM3 |
| InfiniBand protocol | Yes |

## FAQ

### How much does the InfiniBand fibre optic cable BlueOptics Q28-AOC-25M-NK-BO cost, and is it available for purchase?

The price is 341.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 19.08.2026 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 BlueOptics 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 BlueOptics 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/5040425/64346427_large.webp