# Network Cable BlueOptics DAC-QSFP-4SFP-10G-3M-BL QSFP28 4xSFP28 InfiniBand 3m Black

**URL:** https://aio.lv/en/product--blueoptics-dac-qsfp-4sfp-10g-3m-bl--11082557
**Data updated:** 2026-02-25 16:40 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** DAC-QSFP-4SFP-10G-3M-BL
**EAN:** 4063232008103
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 124.99 €
**Prices and availability valid until:** 2026-08-20 23:59
**Price without VAT (21%):** 103.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-dac-qsfp-4sfp-10g-3m-bl--11082557

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 18.08.2026 | free |
| Pickup points | 21.08.2026 | 1.79 EUR |
| Courier delivery to door | 21.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics DAC-QSFP-4SFP-10G-3M-BL is a high-performance InfiniBand/fibre optic cable designed for efficient data transmission. With a length of 3 meters, it features a QSFP28 connector on one end and four SFP28 connectors on the other, ensuring compatibility with various devices. This male-to-male cable supports 10G speeds, making it ideal for data centers and high-speed networking applications. Its durable black design ensures reliability and longevity in demanding environments.

## Long description

The BlueOptics DAC-QSFP-4SFP-10G-3M-BL is a 3 m direct attach cable (DAC) that connects a single QSFP28 port to four SFP28 ports. Designed for short-distance, high-throughput links, this passive twinax copper cable supports 10G per lane aggregation and is suitable for data center top-of-rack and adjacent-rack connections. The cable is supplied in black, weighs approximately 0.25 kg and follows common MSA form-factor practices to ensure interoperability with devices that support QSFP28 to 4×SFP28 DAC connections.
Advantages
This DAC provides low-latency, energy-efficient electrical connectivity for short-range server, switch and storage interconnects without the need for optical transceivers. Its QSFP28-to-4×SFP28 breakout design enables flexible port mapping and consolidation of a 100G interface into four 25G/10G links where supported. The passive twinax construction and 26 AWG conductor specification keep insertion loss low for reliable signal transfer within the specified 3 m range.
Suitable for
High-density rack and adjacent-rack connections in data centers
Linking switches, routers and storage systems that support QSFP28 and SFP28 ports
Ethernet, FCoE and InfiniBand short-reach applications up to the supported bandwidth
Key specifications
Cable length: 3 m
Connector A: QSFP28
Connector B: 4 × SFP28
Conductor type: passive twinax copper, 26 AWG
Typical use: direct attach for short-range high-bandwidth links
Product colour: black
Approximate weight: 0.25 kg
How to use
Install the cable by inserting the QSFP28 end into the host device QSFP28 port and the SFP28 ends into the target device SFP28 ports. Ensure both endpoints are powered down or that the vendor supports hot-plug insertion before connecting. Verify that each device’s firmware and port configuration support DAC-based links and the intended speed (for example 100G aggregated or 4×25G/10G lanes). After connection, check link status and interface counters in the device management interface to confirm proper operation.
Usage recommendations
Use this DAC for short-reach interconnects within the same rack or between adjacent racks. Confirm hardware compatibility with vendor documentation before deployment and avoid routing the cable near strong electromagnetic interference sources or sharp bends to maintain signal integrity.

## Specifications

| Feature | Value |
|---|---|
| Data transfer rate | 100 Gbit/s |
| InfiniBand protocol | Yes |

### Features

| Feature | Value |
|---|---|
| Cable length | 3 m |
| Connector 1 | QSFP28 |
| Connector 2 | 4xSFP28 |
| Product colour | Black |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.25 kg |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 260 g |

## FAQ

### How much does the Network Cable BlueOptics DAC-QSFP-4SFP-10G-3M-BL cost, and is it available for purchase?

The price is 124.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 18.08.2026 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: cable length, connector 1, connector 2, weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/11082557/64082959_large.webp