# InfiniBand/fibre optic cable BlueOptics 40GB-C03-QSFP-EN-BL 3 m Male/Male

**URL:** https://aio.lv/en/product--blueoptics-40gb-c03-qsfp-en-bl--5056594
**Data updated:** 2026-03-07 15:12 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** 40GB-C03-QSFP-EN-BL
**EAN:** 4063232636931
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 114.49 €
**Prices and availability valid until:** 2026-08-08 23:59
**Price without VAT (21%):** 94.62 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-40gb-c03-qsfp-en-bl--5056594

## 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 40GB-C03-QSFP-EN-BL is a 3 m InfiniBand/fibre optic cable with QSFP connectors. It features male/male connectors, ensuring high-speed data transfer for networking applications. Ideal for data centers and high-performance computing environments, this cable provides reliable connectivity and performance.

## Long description

The BlueOptics 40GB-C03-QSFP-EN-BL is a 3 m InfiniBand/fibre optic cable with QSFP male-to-male connectors designed for high-speed connections in racks and adjacent rack deployments. It supports 40 G data rates over a short 3 m distance and is intended for use with hardware that accepts QSFP-to-QSFP direct attach connections. The cable is presented in blue and is compatible with standard 40GBase-CR4 and InfiniBand link layers when used according to the connected devices' supported protocols.
Advantages
This QSFP male/male cable provides a straightforward physical connection for high-throughput links up to 40 Gbit/s across a 3 m span, minimizing latency and power consumption compared with active optical transceivers. Manufactured to industry MSA guidelines and using high-quality components, the cable is suitable for short, reliable electrical signal transfer in rack and adjacent-rack topologies. The passive design reduces complexity and potential points of failure while offering compatibility with a wide range of switches, routers and storage systems that accept QSFP direct attach cables.
Suitable for
Interconnecting switches, routers and storage systems within server racks and across adjacent racks
40G Ethernet links (40GBase-CR4) and InfiniBand short-reach connections
High-performance computing clusters and data-center top-of-rack connections
Key specifications
Length: 3 metres
Connector type: QSFP male to QSFP male
Supported data rate: up to 40 Gbit/s
Cable type: Direct attach twinax / short-reach electrical link suitable for 40GBase-CR4 and InfiniBand applications
Passive design (no active electronics in the cable)
Color: blue
How to use
Ensure both devices to be connected support QSFP direct-attach cables and the targeted protocol (40GBase-CR4, InfiniBand or other supported link layers). Insert each QSFP connector into the device QSFP port until the latch engages and verify link status through the device management interface. For best results place the cable in a routing path that avoids sharp bends and mechanical strain. If devices require configuration for 40 G links or specific protocol settings, apply those settings per the device vendor instructions before transferring production traffic.
Usage recommendations
Use this 3 m QSFP direct attach cable for short-range, high-bandwidth links inside racks or between adjacent racks. Avoid exposure to excessive bending, compressive loads or environments outside typical data-center temperature and humidity ranges. Confirm device compatibility for passive twinax connections and, when possible, test the cable in the target hardware before deploying into critical production links.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.25 kg |
| Package weight | 260 g |
| Cable length | 3 m |
| Data transfer rate | 40 Gbit/s |
| Product colour | Black |
| Connector 1 | QSFP |
| Connector 2 | QSFP |
| InfiniBand protocol | Yes |

## FAQ

### How much does the InfiniBand/fibre optic cable BlueOptics 40GB-C03-QSFP-EN-BL cost, and is it available for purchase?

The price is 114.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 152 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/5056594/64355996_large.webp