# BlueOptics CBL-520-BO InfiniBand fibre optic cable 20 m QSFP28

**URL:** https://aio.lv/en/product--blueoptics-cbl-520-bo--10696021
**Data updated:** 2026-02-25 16:39 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** CBL-520-BO
**EAN:** 4063232308630
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 328.49 €
**Prices and availability valid until:** 2026-08-11 23:59
**Price without VAT (21%):** 271.48 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-cbl-520-bo--10696021

## 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 CBL-520-BO is a 20 m InfiniBand fibre optic cable featuring male QSFP28 connectors on both ends. It is designed for high-speed data transmission in data centers and networking applications, ensuring reliable performance and minimal signal loss.

## Long description

The BlueOptics CBL-520-BO InfiniBand fibre optic cable 20 m QSFP28 is a 20-metre Active Optical Cable (AOC) with male QSFP28 connectors on both ends. It is designed for high-speed data transmission over multimode fiber and supports 100G-class short-reach optical links commonly used in data centers, switches, routers and storage systems. The integrated transmitter and receiver modules at each end convert electrical signals to optical signals and back, providing a pre-assembled fibre connection without the need for separate patch cords or transceivers.
Advantages
The cable offers low signal loss and immunity to electromagnetic interference due to its fibre-optic construction, enabling stable high-bandwidth connections. As an AOC with QSFP28 interfaces, it supports simultaneous send and receive operation and complies with common MSA connection standards for QSFP28 to QSFP28 links. Built using tested optical and electronic components, the cable aims to provide extended operational life and predictable performance for installed optical links.
Suitable for
100G short-reach interconnects between QSFP28 ports in switches and routers
High-speed links in data center top-of-rack and spine architectures
Connections between storage systems and host adapters requiring InfiniBand or Ethernet at 100G-class rates
Environments where immunity to EMI and reduced cabling complexity are required
Key specifications
Cable type: Active Optical Cable (AOC) with multimode fibre
Length: 20 metres
Connector type: QSFP28 male on both ends (QSFP28 to QSFP28)
Supported data rate: up to 100 Gbit/s per link (100G-class short-reach)
Transmission: simultaneous transmit and receive via optical laser modules
Monitoring: supports digital diagnostics / digital optical monitoring (DDM/DOM) where supported by host hardware
How to use
Install the BlueOptics CBL-520-BO by inserting each QSFP28 connector into the corresponding QSFP28 port on the devices to be linked, ensuring correct orientation and secure seating. Verify that connected hardware supports QSFP28 AOCs and, if required, the cable's DDM/DOM functionality for monitoring. Use the cable as a direct interconnect—no separate transceivers, patch panels or additional fibre polishing are necessary. After connection, check link status on the host devices and confirm negotiated data rates and link health.
Lietošanas ieteikumi
When routing, avoid tight bends and excessive tension; maintain minimum bend radius as specified by multimode fibre practice, keep connectors clean and protect unused ends with dust caps. If diagnostics are required, confirm host support for DDM/DOM to access real-time optical parameters.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.15 kg |
| Package weight | 160 g |
| Operating temperature (T-T) | 0 - 70 |
| Cable length | 20 m |
| Data transfer rate | 100 Gbit/s |
| Product colour | Aqua colour |
| Connector 1 | QSFP28 |
| Connector 2 | QSFP28 |
| Cable shape | Round |
| Warranty period | 5 year(s) |
| Compliance certificates | RoHS, Federal Communications Commission (FCC), CE |
| InfiniBand protocol | Yes |

## FAQ

### How much does the InfiniBand fibre optic cable BlueOptics CBL-520-BO cost, and is it available for purchase?

The price is 328.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 16 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

### Where can I download the instructions for InfiniBand fibre optic cable BlueOptics CBL-520-BO?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/10696021/64430706_large.webp