# InfiniBand/fibre optic cable BlueOptics CBL-NTWK-0942-MQ28C25M-BL 3 m QSFP28 Male/Male

**URL:** https://aio.lv/en/product--blueoptics-cbl-ntwk-0942-mq28c25m-bl--5039234
**Data updated:** 2026-03-07 15:12 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** CBL-NTWK-0942-MQ28C25M-BL
**EAN:** 4063232258072
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 134.49 €
**Prices and availability valid until:** 2026-08-22 23:59
**Price without VAT (21%):** 111.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-cbl-ntwk-0942-mq28c25m-bl--5039234

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 21.08.2026 | free |
| Pickup points | 26.08.2026 | 1.79 EUR |
| Courier delivery to door | 26.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics CBL-NTWK-0942-MQ28C25M-BL is a 3 m InfiniBand/fibre optic cable featuring QSFP28 connectors. Designed for high-speed data transmission, this cable ensures reliable connectivity for data centers and high-performance computing environments. With male connectors on both ends, it is easy to install and compatible with various devices.

## Long description

The BlueOptics CBL-NTWK-0942-MQ28C25M-BL is a 3 m InfiniBand/fibre optic cable with QSFP28 male connectors on both ends. Engineered for short-reach, high-speed links, this cable supports 100GBase-CR4 electrical signaling over a direct-attach twinax copper construction and is suitable for connections inside racks and between adjacent racks in data center environments. The cable is designed to be MSA-compliant and compatible with hardware platforms that accept QSFP28 to QSFP28 direct-attach cables.
Advantages
This 3 m QSFP28 direct attach cable provides a low-latency, low-power option for short-distance 100 Gbps links. Passive twinax construction results in simple installation and reduced failure points compared with active modules. The 26 AWG conductor size and MSA-compliant design ensure predictable electrical performance and broad interoperability with switches, routers and storage systems that support QSFP28 DACs.
Suitable for
100 Gbps short-reach connections within and between adjacent server racks
High-performance computing (InfiniBand and Ethernet) interconnects
Switch-to-switch, switch-to-server or switch-to-storage links where QSFP28 DAC is supported
Data center top-of-rack and spine-leaf deployments with short cable runs
Key specifications
Cable length: 3 metres
Connector type: QSFP28 male to QSFP28 male
Supported link rate: up to 100 Gbps (100GBase-CR4 compliant)
Cable type: passive direct attach twinax copper
Conductor size: 26 AWG
Applications: Ethernet, FCoE, Fibre Channel and InfiniBand over short distances
How to use
Install the cable by aligning each QSFP28 connector with the corresponding QSFP28 port on your devices and inserting until the connector latches. Use the cable for short-reach direct connections between QSFP28-capable ports; ensure both endpoints support passive DAC operation and the desired protocol (Ethernet, FCoE, Fibre Channel or InfiniBand). Avoid sharp bends and excessive strain on the cable; maintain the minimum bend radius recommended by the equipment manufacturer to preserve signal integrity.
Usage recommendations
Verify compatibility with your switch, server or storage vendor before deployment and, when possible, test a sample link to confirm link training, speed and protocol operation. Route the cable to minimize bend and mechanical stress, and avoid proximity to strong electromagnetic interference sources for optimal performance.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.15 kg |
| Package weight | 160 g |
| Cable length | 3 m |
| Data transfer rate | 100 Gbit/s |
| Product colour | Black, Silver |
| Connector 1 | QSFP28 |
| Connector 2 | QSFP28 |
| InfiniBand protocol | Yes |

## FAQ

### How much does the InfiniBand/fibre optic cable BlueOptics CBL-NTWK-0942-MQ28C25M-BL cost, and is it available for purchase?

The price is 134.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 316 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 21.08.2026 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/5039234/64340319_large.webp