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

**URL:** https://aio.lv/en/product--blueoptics-q28-aoc-25m-at-bo--5040058
**Data updated:** 2026-02-25 16:37 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** Q28-AOC-25M-AT-BO
**EAN:** 4063232107165
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 341.99 €
**Prices and availability valid until:** 2026-08-11 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-at-bo--5040058

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.08.2026 | free |
| Pickup points | 13.08.2026 | 1.89 EUR |
| Courier delivery to door | 13.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics Q28-AOC-25M-AT-BO is a 25m InfiniBand fibre optic cable designed for high-speed data transmission. 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-AT-BO InfiniBand fibre optic cable 25m OM3 is an active optical cable (AOC) with QSFP28 connectors on both ends, engineered for short-reach 100G high-speed links inside and between server racks. It uses OM3 multimode fibre with a 50 µm core diameter and integrates built-in optical-electrical conversion in the QSFP28 modules to provide a hot-pluggable solution for data centres and high-performance computing environments. The cable features a flame-resistant LSZH sheath for reduced smoke and no halogen emissions in case of fire.
Advantages
The active optical design provides lower weight and greater flexibility compared with direct-attach twinax (DAC) cables while maintaining 100GBASE-SR4 performance. QSFP28 transceiver modules integrated at each cable end conform to SFF and IEEE-related MSA specifications, ensuring interoperability with compatible QSFP28 ports. The cable offers a smaller bend radius and reduced diameter relative to equivalent DAC solutions, and each unit is factory-new and pre-tested for functionality and quality. Manufacturing uses certified components and follows industry standards for CE, RoHS and additional safety norms.
Suitable for
 Short-reach 100G links within a rack or between adjacent racks
 High-performance computing clusters and InfiniBand deployments
 Data centre switch-to-switch or switch-to-server connections using QSFP28 ports
 Environments requiring LSZH (low smoke zero halogen) cabling
Key specifications
 Connector type: QSFP28 to QSFP28 (active transceiver modules integrated)
 Length: 25 metres
 Fibre type: OM3 multimode fibre
 Core diameter: 50 µm
 Application: 100GBASE-SR4 / InfiniBand high-speed short-reach links
 Sheath: LSZH (low smoke, zero halogen) flame-resistant jacket
 Bend radius: reduced compared with direct-attach twinax solutions (improved flexibility)
How to use
Install the BlueOptics QSFP28 to QSFP28 AOC by inserting each QSFP28 connector into the corresponding QSFP28 port on your switches, servers or adapters. The integrated optical-electrical converters are hot-pluggable and require no external transceivers; ensure that connected devices support 100G QSFP28 interfaces and 100GBASE-SR4 or compatible InfiniBand signalling. Route the cable following standard data centre cabling practices, avoiding sharp bends that exceed the recommended bend radius and securing the cable to avoid strain on the connectors. Verify link status via your networking equipment after connection.
Usage recommendations
Use this AOC for short-distance 100G interconnects where weight, flexibility and LSZH jacket properties are important. Confirm compatibility with the host QSFP28 ports and firmware, keep bend radius within manufacturer guidance, and handle connectors by the housing to avoid contaminating optical interfaces.

## 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-AT-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 10.08.2026 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/5040058/64343957_large.webp