# DAC cable CBO QSFP-40G-C3M 40Gbps passive QSFP+ to QSFP+ direct-attach, 3 m

**URL:** https://aio.lv/en/product--blueoptics-qsfp-40g-c3m-bl--4466300
**Data updated:** 2026-02-25 16:31 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP-40G-C3M-BL
**EAN:** 4063232636078
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 114.99 €
**Prices and availability valid until:** 2026-08-05 23:59
**Price without VAT (21%):** 95.03 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp-40g-c3m-bl--4466300

## 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

CBO DAC cable QSFP-40G-C3M is a 3 m passive 40Gbps direct-attach cable with QSFP+ connectors at both ends. Designed for short-reach interconnects between switches, routers and servers, it provides low-latency, high-bandwidth connectivity without optical transceivers. Suitable for data center top-of-rack links and aggregation where a cost-effective, power-efficient 40G connection is required.

## Long description

CBO DAC cable QSFP-40G-C3M is a 3 m passive direct-attach cable offering 40Gbps connectivity with QSFP+ connectors at both ends. Engineered for short-reach interconnects in data centre environments, the cable links switches, routers and servers without the need for optical transceivers. Its passive design provides a low-latency, high-bandwidth copper connection suitable for top-of-rack and aggregation links where a cost-efficient and power-saving 40G solution is required.
Advantages
The cable delivers 40Gbps throughput with minimal latency and reduced power consumption compared with optical modules. Its passive construction reduces component count and simplifies deployment while offering robust electrical performance for short distances. The QSFP+ connectors provide a standardised interface for high-density networking equipment, enabling plug-and-play installation and reliable signal integrity across a 3 m span.
Suitable for
 Top-of-rack switch to switch links in data centres
 Server to switch connections requiring 40Gbps bandwidth
 Aggregation and spine-leaf network segments over short distances
 Environments prioritising low power consumption and reduced heat
Key specifications
 Connector type: QSFP+ to QSFP+
 Data rate: 40 Gbps
 Length: 3 metres
 Cable type: Passive direct-attach copper
 Intended reach: short-reach links within racks or between adjacent racks
How to use
Install the DAC cable by inserting each QSFP+ connector into the corresponding QSFP+ port on networking equipment until the latch engages. Ensure both devices support passive QSFP+ direct-attach cables and are configured for 40Gbps operation. Route the cable to avoid sharp bends and mechanical strain, maintain appropriate airflow around equipment, and verify link status via device LEDs or management interfaces after connection.
Usage recommendations
Use this passive QSFP+ DAC cable for short-distance, high-bandwidth links inside racks or between adjacent racks. Avoid extended runs beyond the specified 3 m length, protect connectors from dust when not in use, and handle the cable by the connector housings to prevent damage to contacts and latches.

## FAQ

### How much does the CBO QSFP-40G-C3M 40G DAC cable 3m 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 — 177 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: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. 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/4466300/59855174_large.webp