# Network Cable BlueLAN Q28-4S28-DAC-2M QSFP28 to 4xSFP28 100GBASE-CR4 2m Blue

**URL:** https://aio.lv/en/product--blueoptics-q28-4s28-dac-2m-ix-bl--10894291
**Data updated:** 2026-03-07 18:09 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** Q28-4S28-DAC-2M-IX-BL
**EAN:** 4063232123226
**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-ix-bl--10894291

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 26.08.2026 | free |
| Pickup points | 31.08.2026 | 1.79 EUR |
| Courier delivery to door | 31.08.2026 | 4.99 EUR |

## Summary description

The BlueLAN Q28-4S28-DAC-2M is a passive 100GBASE-CR4 QSFP28 to 4x25GBASE-CR SFP28 Direct Attach Breakout Cable. With a length of 2 meters and AWG26, it provides reliable connectivity for high-speed data transmission. Ideal for data centers and networking applications, this cable ensures low latency and high performance, making it a perfect choice for demanding environments.

## Long description

The BlueLAN Q28-4S28-DAC-2M QSFP28 to 4xSFP28 100GBASE-CR4 2m Blue is a passive direct attach breakout cable designed for short-reach, high-bandwidth connections in data centers and networking racks. This 2-metre cable splits a single QSFP28 100G connection into four independent 25G SFP28 links, using AWG26 conductors to deliver low-latency, high-throughput airflow-friendly cabling for top-of-rack and aggregation switching environments.
Advantages
The passive DAC design provides deterministic latency and low power consumption compared with active optical solutions. As a copper breakout cable, it offers reliable electrical signal integrity for multi-lane 100G to 4x25G applications while eliminating the need for separate transceivers. The fixed 2 m length and standardized QSFP28 and SFP28 connectors simplify installation and reduce points of failure in dense cabling environments.
Suitable for
 Top-of-rack switch to server connections requiring 100G to 4x25G breakout
 Short-reach interconnects within racks and between adjacent racks
 High-performance computing clusters and storage fabrics
 Data center aggregation and spine-leaf architectures
Key specifications
 Connector type: QSFP28 to 4 × SFP28
 Data rate: 100GBASE-CR4 (breakout to 4 × 25GBASE-CR)
 Length: 2 metres (2 m)
 Cable gauge: AWG26
 Cable type: Passive direct attach copper (DAC) breakout
 Latency: Ultra-low, suitable for latency-sensitive applications
How to use
Install the QSFP28 plug into the 100G QSFP28 port on a switch or network device and insert the four SFP28 plugs into the corresponding 25G SFP28 ports on target devices or servers. Ensure devices are powered off or support hot-plugging according to vendor guidance, then verify link status through the equipment management interface. No external transceivers or additional configuration is required beyond standard port activation and link negotiation where applicable.
Usage recommendations
Use this 2 m passive breakout cable for short-reach connections inside racks or between adjacent racks. Avoid routing the cable near strong electromagnetic sources or tight bends below the manufacturer’s recommended minimum bend radius. For longer reaches or environments requiring optical isolation, consider active or optical transceiver-based solutions.

## FAQ

### How much does the Network Cable BlueLAN Q28-4S28-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 26.08.2026 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