# CBO InfiniBand Direct Attach Cable EX-QSFP-40GE-DAC-3M 3 m passive QSFP+

**URL:** https://aio.lv/en/product--blueoptics-ex-qsfp-40ge-dac-3m-bl--4467059
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** EX-QSFP-40GE-DAC-3M-BL
**EAN:** 4063232637020
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 114.99 €
**Prices and availability valid until:** 2026-08-12 23:59
**Price without VAT (21%):** 95.03 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-ex-qsfp-40ge-dac-3m-bl--4467059

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.08.2026 | free |
| Pickup points | 13.08.2026 | 1.89 EUR |
| Courier delivery to door | 13.08.2026 | 4.99 EUR |

## Summary description

Passive InfiniBand direct attach copper cable CBO EX-QSFP-40GE-DAC-3M, 3 meters, QSFP+ to QSFP+ form factor. Designed for short-reach, high-throughput links between switches, servers and storage, supporting 40GbE/InfiniBand interconnects. Provides low latency and reliable physical connectivity for rack-to-rack or within-rack deployments.

## Long description

CBO InfiniBand Direct Attach Cable EX-QSFP-40GE-DAC-3M is a 3-metre passive QSFP+ to QSFP+ copper cable designed for short-reach, high-throughput connections. It provides a physical link for 40GbE and InfiniBand environments between switches, servers and storage devices, offering low latency and consistent signal integrity for rack-to-rack or within-rack deployments.
Advantages
The passive QSFP+ direct attach design eliminates the need for separate transceivers, reducing power consumption and simplifying installation. With a 3 m length and robust copper construction, the cable supports high data rates with minimal latency and predictable performance. Compatibility with standard QSFP+ ports makes it suitable for many data centre and enterprise network setups while keeping total cost of ownership lower than active optical solutions for short distances.
Suitable for
 High-density switch-to-switch connections in racks
 Server-to-switch links in data centre topologies
 Storage array interconnects requiring 40GbE or InfiniBand throughput
 Short-reach copper interconnects where low power and low latency are priorities
Key specifications
 Form factor: QSFP+ to QSFP+
 Length: 3 m (passive copper cable)
 Supported protocols: 40GbE and InfiniBand
 Performance: Low-latency, high-throughput interconnect for short distances
 Power: Passive design (no external power required)
 Mounting environment: Within-rack and rack-to-rack connections
How to use
Insert each QSFP+ plug into compatible QSFP+ ports on the devices to be connected, ensuring the connectors are aligned and fully seated. Once connected, verify link status through the device management interfaces and configure the network ports for 40GbE or InfiniBand as required. For best results, route the cable to avoid sharp bends and minimize mechanical stress on the connectors.
Usage recommendations
Use this passive DAC for short-distance connections up to 3 metres inside racks or between adjacent racks. Avoid using the cable in environments with excessive vibration, high temperatures, or where electromagnetic interference could be an issue. Inspect connectors before installation and handle by the plug housings to prevent damage to the contacts.

## FAQ

### How much does the CBO EX-QSFP-40GE-DAC-3M 3 m QSFP+ cable cost, and is it available for purchase?

The price is 114.99 € (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 10.08.2026 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/4467059/59853447_large.webp