# BlueOptics Q28-AOC-25M-RW-BO InfiniBand fibre optic cable 25m QSFP28

**URL:** https://aio.lv/en/product--blueoptics-q28-aoc-25m-rw-bo--5040431
**Data updated:** 2026-02-25 16:37 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** Q28-AOC-25M-RW-BO
**EAN:** 4063232107431
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 341.49 €
**Prices and availability valid until:** 2026-08-09 23:59
**Price without VAT (21%):** 282.22 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-q28-aoc-25m-rw-bo--5040431

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.08.2026 | free |
| Pickup points | 12.08.2026 | 1.89 EUR |
| Courier delivery to door | 12.08.2026 | 4.99 EUR |

## Summary description

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

## Long description

The BlueOptics Q28-AOC-25M-RW-BO InfiniBand fibre optic cable is a 25-meter QSFP28 to QSFP28 active optical cable (AOC) engineered for 100G high-speed short-reach links within racks or between adjacent racks. It uses OM3 multimode fibre with a 50 µm core diameter and LSZH (low smoke zero halogen) sheath for reduced smoke and halogen emissions. The cable integrates hot-pluggable QSFP28 transceiver modules with built-in optical/electrical conversion to support 100GBASE-SR4 Ethernet and InfiniBand interconnects while providing lower weight and improved flexibility compared with passive Direct Attach twinax assemblies.
Advantages
The AOC design offers an integrated I/O and O/E converter in each QSFP28 connector, enabling reliable optical transmission over 25 meters without separate transceivers. OM3 multimode fibre and QSFP28 interfaces provide compatibility with 100GBASE-SR4 and InfiniBand high-throughput applications. The LSZH jacket improves safety in enclosed environments by limiting halogen release and smoke in case of fire. Compared with DAC copper assemblies, this active optical cable has a smaller bend radius, reduced weight, and enhanced flexibility for dense rack installations.
Suitable for
Short-reach 100G connections inside racks or between adjacent racks
High-performance computing and InfiniBand fabric links
Data centre top-of-rack and spine-leaf interconnects supporting 100GBASE-SR4
Server-to-switch and switch-to-switch links requiring QSFP28 interfaces
Key specifications
Length: 25 meters
Connector type: QSFP28 to QSFP28 (hot-pluggable)
Fibre type: OM3 multimode
Core diameter: 50 µm
Supported standard: 100GBASE-SR4 Ethernet and InfiniBand high-speed links
Sheath material: LSZH (low smoke zero halogen), flame resistant
Form factor compliance: SFF/MSA and relevant IEEE specifications for QSFP28
How to use
Ensure both host ports support QSFP28 modules and are powered down or in a state recommended by the equipment vendor for hot-plug operations if required. Remove dust caps from the QSFP28 connectors, align the connector keying with the port, and insert until the latch engages. The built-in optical/electrical conversion in the AOC eliminates separate transceivers; the connected devices should recognize the link per their firmware and driver support for 100GBASE-SR4 or InfiniBand. Avoid installing the cable near sharp edges and maintain the manufacturer’s recommended bend radius to prevent attenuation or damage.
Usage recommendations
Inspect connectors before installation and keep dust caps in place when not in use. Use appropriate port settings and firmware that support QSFP28 AOC modules, and route the cable to avoid tight bends, kinks, or compression. For critical installations, validate link performance after deployment and follow data centre safety standards for LSZH cables.

## 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-RW-BO cost, and is it available for purchase?

The price is 341.49 € (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 07.08.2026 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/5040431/64346469_large.webp