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

**URL:** https://aio.lv/en/product--blueoptics-q28-aoc-25m-ql-bo--5040429
**Data updated:** 2026-02-25 16:37 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** Q28-AOC-25M-QL-BO
**EAN:** 4063232107417
**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-ql-bo--5040429

## 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-QL-BO is a 25m InfiniBand fibre optic cable designed for high-speed data transmission. It features OM3 fibre type with a 50 µm core diameter and QSFP28 connectors on both ends, ensuring reliable connectivity for data centers and high-performance computing environments.

## Long description

The BlueOptics Q28-AOC-25M-QL-BO InfiniBand fibre optic cable 25m OM3 is an active optical cable (AOC) engineered for short-reach 100G links. It uses OM3 multimode fibre with a 50 µm core and QSFP28 connectors on both ends, integrating optical transceiver modules to convert electrical signals to optical and back. The 25 metre length is suitable for connections within a rack or between adjacent racks. The cable is designed for 100GBASE-SR4 Ethernet and supports high-speed data transmission with lower weight and greater flexibility compared to direct attach twinax (DAC) solutions. The outer sheath is LSZH (low smoke, zero halogen) for reduced smoke and halogen emissions in case of fire.
Advantages
The integrated QSFP28 transceiver connectors comply with SFF/MSA and IEEE guidelines and provide hot-pluggable operation with built-in I/O and O/E conversion. The AOC design yields a smaller bend radius and reduced cable diameter versus DAC, improving routing in dense rack environments. Factory testing of each cable ensures functionality and conformity to industry standards such as CE and RoHS. Use of quality optical and electronic components supports stable signal integrity and consistent 100G performance over the specified 25 m length.
Suitable for
Connecting network switches, routers and servers within a single rack.
Inter-rack connections between adjacent racks in data centres.
High-performance computing clusters requiring 100G InfiniBand or 100GBASE-SR4 links.
Short-reach optical links where reduced weight and improved flexibility are required.
Key specifications
Length: 25 metres
Fibre type: OM3 multimode fibre (50 µm core diameter)
Connector type: QSFP28 to QSFP28 (hot-pluggable)
Supported protocol: 100G (100GBASE-SR4 Ethernet, InfiniBand)
Sheath: LSZH (low smoke, zero halogen)
Bend radius: smaller bend radius compared to equivalent DAC solutions
How to use
Inspect connectors and ensure both QSFP28 ports on the devices are compatible and powered down if required by your equipment procedure. Align the QSFP28 connector latches and insert the cable until the connector engages; the built-in transceivers will handle electrical/optical conversion automatically. After connection, verify link status via the host devices and perform any diagnostics or speed/negotiation checks as needed. Remove the cable by releasing the latch and pulling straight out to avoid stressing the fibre.
Usage recommendations
Handle the AOC by the connector housings and avoid tight bends. Maintain the recommended minimum bend radius and avoid crushing or kinking the cable. Use in environments and distances intended for OM3 multimode fibre and 100G short-reach applications; do not attempt to splice or modify the active cable.

## 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-QL-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/5040429/64346455_large.webp