# InfiniBand/fibre optic cable BlueOptics CAB-Q-4S-100G-3M 3m QSFP28 4xSFP28 Male/Male

**URL:** https://aio.lv/en/product--blueoptics-cab-q-4s-100g-3m-bl--4470502
**Data updated:** 2026-02-25 16:34 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** CAB-Q-4S-100G-3M-BL
**EAN:** 4063232641928
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 192.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 159.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-cab-q-4s-100g-3m-bl--4470502

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

The BlueOptics CAB-Q-4S-100G-3M is a high-performance InfiniBand/fibre optic cable designed for efficient data transmission. With a length of 3 meters, it features a QSFP28 connector on one end and four SFP28 connectors on the other, allowing for versatile connectivity options. This cable is ideal for data centers and high-speed networking environments, ensuring reliable and fast data transfer.

## Long description

The BlueOptics CAB-Q-4S-100G-3M is a 3‑metre InfiniBand/fibre optic cable engineered for high-speed connectivity between QSFP28 and SFP28 ports. One end terminates in a QSFP28 male connector while the opposite end splits into four SFP28 male connectors, enabling aggregation or breakout configurations without additional adapters. The cable supports environments where low latency and high throughput are required, such as server interconnects, storage networks and high-performance computing clusters.
Advantages
This cable provides a compact breakout solution that reduces cabling complexity and rack space compared with multiple separate links. It is designed for consistent signal integrity across the full 3 m length and supports the electrical and optical characteristics required for 100 G connections aggregated to four 25 G lanes. The integrated design simplifies installation and reduces the number of individual connections to manage.
Suitable for
Connecting QSFP28 ports to multiple SFP28 ports in data centre switch and server deployments
High-performance computing clusters requiring low-latency links
Storage networks and virtualization hosts with 100 G uplinks split to 25 G endpoints
Rack consolidation and cabling reduction projects
Key specifications
Cable type: InfiniBand / fibre optic breakout cable (QSFP28 to 4×SFP28)
Length: 3 metres
Connector configuration: 1×QSFP28 male to 4×SFP28 male
Data rate support: up to 100 G (aggregate) with four 25 G lanes
Typical use: active data centre interconnects and server-to-switch links
Form factor: single-cable breakout for simplified routing
How to use
Install the cable by inserting the QSFP28 connector into the 100 G port and the four SFP28 connectors into the corresponding 25 G ports on target devices. Ensure devices are powered down or that hot-swap procedures are followed according to hardware vendor guidance when making live changes. Verify link status and negotiate speeds on each endpoint after connection; firmware or driver settings on switches and servers may require configuration to recognize breakout mode.
Usage recommendations
Route the cable to avoid sharp bends and maintain the manufacturer’s minimum bend radius. Use proper airflow management in racks and secure connectors to prevent strain. Confirm compatibility with host and switch breakout capabilities before deployment and keep firmware up to date for reliable link negotiation.

## Specifications

| Feature | Value |
|---|---|
| Cable length | 3 m |
| Data transfer rate | 100 Gbit/s |
| Product colour | Black |
| Connector 1 | QSFP28 |
| Connector 2 | 4xSFP28 |

## FAQ

### How much does the InfiniBand/fibre optic cable BlueOptics CAB-Q-4S-100G-3M cost, and is it available for purchase?

The price is 192.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 19 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 27.07.2026 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/4470502/58974395_large.webp