# BlueOptics SFP-DAC40-3M-BL InfiniBand fibre optic cable QSFP 3m Male/Male

**URL:** https://aio.lv/en/product--blueoptics-sfp-dac40-3m-bl--4469291
**Data updated:** 2026-02-25 16:33 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP-DAC40-3m-BL
**EAN:** 4063232144924
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 114.99 €
**Prices and availability valid until:** 2026-08-02 23:59
**Price without VAT (21%):** 95.03 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfp-dac40-3m-bl--4469291

## 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 SFP-DAC40-3M-BL is a 3-meter InfiniBand fibre optic cable with QSFP connectors. It features a Male/Male configuration, ensuring high-speed data transfer and reliability for data centers and networking applications.

## Long description

The BlueOptics SFP-DAC40-3M-BL InfiniBand fibre optic cable QSFP 3m Male/Male is a 3-metre direct attach cable designed for short-reach, high-speed interconnects in racks and adjacent rack rows. It implements QSFP-to-QSFP connectivity and supports 40G data rates for Ethernet, Fibre Channel, FCoE and InfiniBand applications where QSFP passive twinax or equivalent solutions are supported. The cable is intended for use with hardware platforms that accept 40GBase-CR4 / QSFP direct attach connections and provides a compact, low-latency link for switches, routers, storage systems and servers.
Advantages
This 3 m QSFP male-to-male cable offers a low-power passive solution for short-distance high-throughput links. Its passive twinax construction yields low latency and reduced failure points compared with active components, and the cable conforms to common MSA electrical and mechanical guidelines to ensure interoperability with major network platforms. The design is optimized for consistent signal transfer over short distances and for environments where predictable performance and long service life are required.
Suitable for
Connecting switches and routers within a rack or between adjacent racks
Interconnecting storage systems and servers for high-throughput transfers
Short-reach InfiniBand and 40GBase-CR4 links in data centres
Environments requiring low-latency, low-power passive cabling
Key specifications
Length: 3 metres
Connector type: QSFP to QSFP, male/male
Supported data rate: up to 40 Gbit/s
Cable type: passive twinax twin cable suitable for short-reach electrical signalling
Wire gauge: 30 AWG (typical for this class of DAC)
Compatibility: designed for hardware that supports 40GBase-CR4 / QSFP passive DAC links
Typical power consumption: passive (no active electronics in the cable)
How to use
Install the BlueOptics SFP-DAC40-3M-BL by inserting each QSFP connector into the corresponding QSFP port on the devices to be linked, ensuring proper seating and secure latching. Use the cable for direct, short-distance connections only; verify that the target devices explicitly support passive 40G QSFP direct attach cables. No additional configuration is required at the cable level, though connected devices may need port configuration (speed, lane mapping, protocol settings) according to the network design and device firmware.
Usage recommendations
For reliable operation, route and secure the cable to avoid excessive bending and mechanical strain, and keep length within the specified 3 m distance for passive DAC use. Confirm interoperability with device vendor documentation and, if available, test a sample in the intended hardware and firmware environment prior to deployment in critical links.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.15 kg |
| Package weight | 160 g |
| Cable length | 3 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 SFP DAC Cable BlueOptics SFP-DAC40-3M-BL 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 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/4469291/64296772_large.webp