# InfiniBand/fibre optic cable BlueOptics CBL-NTWK-0942-MQ28C30M-BL 3 m QSFP28 Male/Male

**URL:** https://aio.lv/en/product--blueoptics-cbl-ntwk-0942-mq28c30m-bl--5039235
**Data updated:** 2026-02-25 16:36 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** CBL-NTWK-0942-MQ28C30M-BL
**EAN:** 4063232258058
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 134.49 €
**Prices and availability valid until:** 2026-08-19 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-mq28c30m-bl--5039235

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.08.2026 | free |
| Pickup points | 20.08.2026 | 1.79 EUR |
| Courier delivery to door | 20.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics CBL-NTWK-0942-MQ28C30M-BL is a 3 m InfiniBand/fibre optic cable featuring QSFP28 connectors. It provides high-speed data transmission and is designed for reliable connectivity in data centers and high-performance computing environments.

## Long description

The BlueOptics CBL-NTWK-0942-MQ28C30M-BL is a 3 m InfiniBand / fibre optic cable with QSFP28 male-to-male connectors designed for short-range, high-speed links in rack and adjacent-rack installations. It supports 100G data rates and is suitable for direct-attach connections where reliable electrical or optical connectivity is required between switches, storage systems, routers and high-performance computing nodes. The cable follows industry MSA guidelines and is intended for environments that demand low latency and consistent signal integrity.
Advantages
This 3 m QSFP28 cable delivers up to 100G throughput with low latency and minimal power consumption typical of passive direct-attach twinax solutions. It is produced using selected high-quality components to ensure robust electrical performance and durability for continuous operation. The compact QSFP28-to-QSFP28 design simplifies cabling in dense rack environments and reduces the need for transceivers when used as a direct attach solution.
Suitable for
100G direct attach links between switches and routers in data centers
Interconnects between servers and top-of-rack or adjacent-rack switches
High-performance computing clusters using InfiniBand or Ethernet fabrics
Storage systems and SAN connectivity supporting 100G signalling
Key specifications
Cable length: 3 metres
Connector type: QSFP28 male to QSFP28 male
Maximum data rate: up to 100 Gbit/s
Cable type: passive direct attach twinax (suitable for short distances)
Conductor gauge: 26 AWG
Standards: MSA-compliant QSFP28 electrical / InfiniBand and 100GBase-CR4 compatible signalling
Typical power consumption: passive (low power, ~0.1 W for comparable cables depending on host)
How to use
Install the QSFP28 connectors into compatible QSFP28 ports on each device until the latch engages. Verify that both connected devices support passive DAC cables and the 100G signalling protocol in use (Ethernet, FCoE, Fibre Channel or InfiniBand). Use the 3 m length to connect hardware within the same rack or to adjacent racks; avoid tight bends and excessive pulling force. After physical installation, check link status and negotiate network settings on the connected devices according to the vendor documentation.
Usage recommendations
For reliable operation, confirm compatibility with your switch or server vendor and ensure QSFP28 ports are configured for passive DAC operation. Route the cable to avoid sharp bends (maintain manufacturer minimum bend radius), secure it to prevent strain on connectors, and operate within recommended temperature and humidity ranges for your equipment. For critical installations consider testing a sample cable in your environment before large-scale deployment.

## 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-MQ28C30M-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 — 318 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 17.08.2026 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/5039235/64340325_large.webp