# InfiniBand/fibre optic cable BlueOptics 40GB-C0.5-QSFP-BL 0.5 m Black

**URL:** https://aio.lv/en/product--blueoptics-40gb-c05-qsfp-bl--5056813
**Data updated:** 2026-03-07 15:12 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** 40GB-C0.5-QSFP-BL
**EAN:** 4063232009902
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 80.99 €
**Prices and availability valid until:** 2026-08-03 23:59
**Price without VAT (21%):** 66.93 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-40gb-c05-qsfp-bl--5056813

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.89 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics 40GB-C0.5-QSFP-BL is a 0.5 m InfiniBand/fibre optic cable with QSFP connectors. It features male/male connectors and is designed for high-speed data transmission in data centers and networking applications. Its compact length makes it ideal for short connections, ensuring efficient performance.

## Long description

The BlueOptics 40GB-C0.5-QSFP-BL is a 0.5 m InfiniBand/fibre optic direct attach cable with QSFP to QSFP male connectors designed for high-speed short-distance links in racks and adjacent rack systems. It supports up to 40 Gbit/s data rates and is intended for use in data center environments and network hardware that accept QSFP direct attach solutions. Its compact length and passive twinax/twin-axial design make it suitable for short, low-latency connections between switches, routers and storage devices.
Advantages
The cable provides a straightforward physical connection for 40G applications with QSFP interfaces, offering low latency and low power consumption typical of passive direct attach cabling. Manufactured to align with industry MSA guidelines, the product is built from established component vendors and is intended to deliver dependable electrical signal transfer over a short 0.5 m distance. Its short form factor simplifies cable management in dense rack environments.
Suitable for
40G QSFP interconnects between switches and routers in rack and adjacent rack setups
Server to switch or storage to switch short links within data centres
InfiniBand, Ethernet, Fibre Channel and FCoE applications that operate over 40G direct attach cabling
Key specifications
Connector type: QSFP male to QSFP male
Cable length: 0.5 m
Data rate: up to 40 Gbit/s
Cable type: passive direct attach (twinax copper / twin-axial electrical transmission)
Form factor: 40GBase-CR4 compatible
How to use
Ensure both devices support 40G QSFP direct attach passive cables and have matching QSFP ports. With devices powered down or following hot-plug guidance from the hardware vendor, align each QSFP connector with the port and insert until it seats securely. Confirm link establishment in the host hardware or switch management interface and verify correct speed and protocol operation (Ethernet, InfiniBand, Fibre Channel or FCoE) according to your network configuration. Handle the cable by the connector housings and avoid sharp bends to maintain signal integrity.
Usage recommendations
Use this 0.5 m BlueOptics QSFP direct attach cable for short interconnects where passive twinax is supported by the hardware. Verify vendor compatibility lists for the target switches, routers or storage systems before deployment and avoid exceeding manufacturer-recommended bend radii and stress on the connectors to ensure reliable long-term operation.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.15 kg |
| Package weight | 160 g |
| Cable length | 0.5 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-C0.5-QSFP-BL cost, and is it available for purchase?

The price is 80.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 118 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 03.08.2026 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/5056813/64356884_large.webp