# DAC Cable BlueOptics DAC-QSFP28-4SFP28-25G-3M-BL 3m QSFP28 to 4xSFP28

**URL:** https://aio.lv/en/product--blueoptics-dac-qsfp28-4sfp28-25g-3m-bl--8420802
**Data updated:** 2026-03-07 15:17 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** DAC-QSFP28-4SFP28-25G-3M-BL
**EAN:** 4063232290133
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 192.99 €
**Prices and availability valid until:** 2026-08-28 23:59
**Price without VAT (21%):** 159.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-dac-qsfp28-4sfp28-25g-3m-bl--8420802

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.08.2026 | free |
| Pickup points | 01.09.2026 | 1.79 EUR |
| Courier delivery to door | 01.09.2026 | 4.99 EUR |

## Summary description

The BlueOptics DAC-QSFP28-4SFP28-25G-3M-BL is a 3-meter DAC cable featuring a QSFP28 connector on one end and four SFP28 connectors on the other. It is designed for high-speed data transmission in data centers and networking applications, providing reliable performance and efficient connectivity.

## Long description

The BlueOptics DAC-QSFP28-4SFP28-25G-3M-BL is a 3 m direct attach copper (DAC) cable with a QSFP28 connector on one end and four SFP28 connectors on the other. Designed for short-reach, high-speed links in racks and between adjacent racks, this passive twinax cable supports aggregated 100GBase-CR4 and 4x25GBase-CR electrical transmission over a 3 meter distance. Manufactured to MSA guidelines and intended for use in hardware platforms that support QSFP28-to-4xSFP28 DACs, it provides a straightforward, low-latency connection option for switches, routers and storage systems requiring up to 100 Gbit/s aggregated throughput.
Advantages
This 3 m DAC cable delivers reliable short-distance connectivity with low power consumption and minimal latency because it uses a passive twinax copper design. Compliance with MSA form factors and use of established component suppliers ensure compatibility with major networking hardware that supports QSFP28 and SFP28 interfaces. The compact, fixed-length cable simplifies installation in dense rack environments and reduces the need for external transceivers, lowering both purchase and operating costs.
Suitable for
 High-density rack-to-rack links and intra-rack connections
 Aggregated 100GBase-CR4 or 4x25GBase-CR short-reach links
 Switch-to-switch, switch-to-router or switch-to-storage system connections
 Data center top-of-rack and spine-leaf architectures requiring low latency
Key specifications
 Cable length: 3 m
 Connector type (end 1): QSFP28
 Connector type (end 2): 4 × SFP28
 Cable type: Passive twinax copper (DAC)
 Transmission: up to aggregated 100 Gbit/s (100GBase-CR4 / 4 × 25GBase-CR)
 Conductor gauge: 26 AWG
 Product colour: Black and Silver
 Weight: 0.25 kg
How to use
Install the DAC by firmly inserting the QSFP28 connector into the QSFP28 port on the source device and inserting each SFP28 connector into the corresponding SFP28 ports on the destination device(s). Ensure both devices officially support passive QSFP28-to-4xSFP28 DAC connections and the chosen transmission modes (100GBase-CR4 or 4x25GBase-CR). Route the cable to avoid tight bends, excessive strain or pinch points and secure it within the rack to maintain proper airflow and cable management. No external power or configuration of the cable itself is required; the connected hardware negotiates link parameters according to supported standards.
Usage recommendations
 For reliable operation, verify hardware compatibility with QSFP28-to-4xSFP28 passive DACs before deployment, keep the cable length within the specified 3 m for guaranteed signal performance, and avoid repeated flexing near the connector boots. Use in environments with appropriate ventilation and within the equipment manufacturer's recommended temperature range to maximize service life.

## Specifications

| Feature | Value |
|---|---|
| Data transfer rate | 100 Gbit/s |

### Logistics data

| Feature | Value |
|---|---|
| Warranty period | 5 year(s) |

### Packaging data

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

### Weight & dimensions

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

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 70 |

### Features

| Feature | Value |
|---|---|
| AWG wire size | 26 |
| Connector 2 | 4xSFP28 |
| Connector 1 | QSFP28 |
| Product colour | Black, Silver |
| Cable length | 3 m |

## FAQ

### How much does the DAC Cable BlueOptics DAC-QSFP28-4SFP28-25G-3M-BL cost, and is it available for purchase?

The price is 192.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 29 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 27.08.2026 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: connector 2, connector 1, cable length, 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/8420802/59506879_large.webp