# DAC Cable BlueOptics DAC-QSFP-40G-5M-BL 5m QSFP Male/Male

**URL:** https://aio.lv/en/product--blueoptics-dac-qsfp-40g-5m-bl--4465129
**Data updated:** 2026-02-25 16:30 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** DAC-QSFP-40G-5M-BL
**EAN:** 4063232011738
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 173.49 €
**Prices and availability valid until:** 2026-08-27 23:59
**Price without VAT (21%):** 143.38 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-dac-qsfp-40g-5m-bl--4465129

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 25.08.2026 | free |
| Pickup points | 28.08.2026 | 1.79 EUR |
| Courier delivery to door | 28.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics DAC-QSFP-40G-5M-BL is a 5-meter direct attach copper cable designed for high-speed data transmission. It features QSFP male connectors on both ends, making it ideal for connecting switches and servers in data centers. This cable offers a reliable and cost-effective solution for short-distance connections, ensuring optimal performance in high-bandwidth applications.

## Long description

The BlueOptics DAC-QSFP-40G-5M-BL is a 5 meter direct attach copper (DAC) cable with QSFP male connectors on both ends, designed for short-distance, high-speed data links in racks and between adjacent racks. It supports 40GBase-CR4 electrical signaling and is intended for use with hardware platforms that accept QSFP-to-QSFP twinax copper connections. The cable is a passive 40G twinax type with 30 AWG conductors and provides a cost-effective, low-latency option for connecting switches, servers and storage systems within data center environments.
Advantages
The cable delivers reliable 40 Gbps connectivity over a 5 m distance while maintaining low power consumption and low latency typical of passive twinax DACs. It is MSA-compliant and built with shielded QSFP male connectors on both ends to ensure stable electrical connections. The design targets straightforward, maintenance-friendly installations with a reduced failure rate due to the absence of active components in the passive variant. Compatibility with major hardware platforms that support QSFP 40GBase-CR4 connections makes it a practical choice for short-reach interconnects in modern networks.
Suitable for
Top-of-rack and adjacent-rack switch-to-switch connections
Server-to-switch and server-to-storage links within a rack
High-bandwidth, short-reach data center interconnects at 40 Gbps
Key specifications
Length: 5 meters
Connector type: QSFP male to QSFP male
Data rate: up to 40 Gbps (40GBase-CR4)
Cable type: passive twinax copper (DAC)
Conductor gauge: 30 AWG
MSA-compliant design
How to use
Install the BlueOptics DAC-QSFP-40G-5M-BL by inserting each QSFP male connector into the corresponding QSFP port on compatible switches, servers or storage devices. Ensure both endpoints officially support passive QSFP twinax connections and the 40GBase-CR4 electrical protocol. Route the cable within rack channels or cable management trays to avoid sharp bends and mechanical stress. No external power or configuration on the cable itself is required; link negotiation and protocol handling are managed by the connected equipment.
Usage recommendations
Verify hardware compatibility and port support for passive QSFP DACs before deployment. Maintain bend radius as specified by the equipment manufacturer and avoid excessive pulling force during installation. For high-availability links, test the cable in your environment to confirm stable 40 Gbps operation and monitor link status through your network devices.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.44 kg |
| Package weight | 450 g |
| Cable length | 5 m |
| Data transfer rate | 40 Gbit/s |
| Product colour | Black, Silver |
| Connector 1 | QSFP |
| Connector 2 | QSFP |
| InfiniBand protocol | Yes |

## FAQ

### How much does the DAC Cable BlueOptics DAC-QSFP-40G-5M-BL cost, and is it available for purchase?

The price is 173.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 44 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 25.08.2026 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/4465129/64290402_large.webp