# Network Cable BlueLAN QSFP28-4SFP28-DAC-2M QSFP28 to 4x25GBASE-CR SFP28 Direct Attach Breakout Cable 2m Blue

**URL:** https://aio.lv/en/product--blueoptics-q28-4s28-dac-2m-gm-bl--10894253
**Data updated:** 2026-03-07 18:09 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** Q28-4S28-DAC-2M-GM-BL
**EAN:** 4063232122762
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 173.49 €
**Prices and availability valid until:** 2026-08-28 23:59
**Price without VAT (21%):** 143.38 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-q28-4s28-dac-2m-gm-bl--10894253

## 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 BlueLAN QSFP28-4SFP28-DAC-2M is a passive 100GBASE-CR4 cable that connects a QSFP28 port to four SFP28 ports. With a length of 2 meters and AWG26 construction, it ensures high-speed data transfer and reliable performance. Ideal for data centers and high-performance computing environments, this cable provides a cost-effective solution for connecting multiple devices while maintaining signal integrity.

## Long description

The BlueLAN QSFP28-4SFP28-DAC-2M is a passive 100GBASE-CR4 direct attach breakout cable that links a single QSFP28 port to four independent SFP28 ports. Designed for short-reach, high-density connections, the 2 meter cable uses AWG26 conductor construction and maintains signal integrity for aggregated 100G links or split 4×25G connections. The cable is intended for use in rack, top-of-rack or leaf-spine network topologies where compact, low-latency interconnects are required.
Advantages
The BlueLAN QSFP28 to 4×25G SFP28 DAC provides a simple, power-free method to convert one 100G QSFP28 interface into four 25G SFP28 links without active electronics. Its AWG26 wiring and 2 m length offer a predictable channel performance for short-range server-to-switch or switch-to-switch connections. The breakout design reduces port adapter complexity and saves rack space while delivering the bandwidth aggregation needed for high-performance computing and virtualization environments.
Suitable for
Data center top-of-rack and leaf-spine interconnects
High-performance computing clusters and GPU servers
Switch-to-switch consolidation where 100G to 4×25G breakout is required
Low-latency storage and virtualization uplinks
Key specifications
Connector types: QSFP28 (one end) to 4 × SFP28 (other end)
Supported link standard: 100GBASE-CR4 / 4×25GBASE-CR
Length: 2 meters
Cable construction: AWG26 conductor
Form factor: Passive direct attach cable (breakout DAC)
Typical use: Short-reach copper interconnect, within rack or between adjacent racks
How to use
Insert the QSFP28 end into the 100G-capable QSFP28 port and plug each SFP28 connector into the corresponding 25G-capable SFP28 ports on the target device. Ensure ports and devices support passive DAC and the intended link speeds, and verify port mapping in the host or switch configuration so each 25G channel is recognized. No external power or transceivers are required; handle the cable by the connectors and avoid sharp bends or pulling on the cable body to preserve performance.
Usage recommendations
Use in environments with short cable runs (within racks or between adjacent racks) and where passive breakout cables are supported by network equipment. Maintain bend radius and secure cable routing to prevent signal degradation. For longer distances or where active electronics are required, consider optical transceivers or active DAC alternatives.

## FAQ

### How much does the Network Cable BlueLAN QSFP28-4SFP28-DAC-2M 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 — 50 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