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

**URL:** https://aio.lv/en/product--blueoptics-q28-4s28-dac-2m-al-bl--10894264
**Data updated:** 2026-03-07 18:09 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** Q28-4S28-DAC-2M-AL-BL
**EAN:** 4063232122557
**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-al-bl--10894264

## 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 Alcatel-Lucent Q28-4S28-DAC-2M is a 2-meter passive Direct Attach Breakout Cable designed for high-speed data transmission. It features a QSFP28 connector on one end and four SFP28 connectors on the other, supporting 100GBASE-CR4 and 25GBASE-CR standards. With an AWG26 construction, this cable ensures reliable performance and minimal signal loss, making it ideal for data centers and high-performance computing environments.

## Long description

The BlueLAN Alcatel-Lucent Q28-4S28-DAC-2M is a 2-meter passive direct attach breakout cable engineered for high-speed short-reach connections. One end terminates in a QSFP28 connector and the other end splits into four SFP28 connectors, supporting 100GBASE-CR4 and 25GBASE-CR operation modes. Constructed with AWG26 conductors, the cable is designed to deliver low insertion loss and consistent signal integrity for top-of-rack and aggregation layer links in data center and high-performance computing deployments.
Advantages
This breakout cable provides a compact and cost-effective solution for connecting a 100G QSFP28 port to four 25G SFP28 ports without active components. Its AWG26 construction balances flexibility with electrical performance, while the passive design reduces power consumption and eliminates the need for transceiver optics. The 2 m length offers a practical reach for within-rack and short inter-rack connections, and the standardized QSFP28-to-4xSFP28 pinout ensures interoperability with compatible switches and servers.
Suitable for
 Top-of-rack switch to server aggregation where 100G breakouts to 25G are required
 High-performance computing clusters needing short, low-latency links
 Data center migration or consolidation projects that split 100G links into multiple 25G endpoints
 Switch cascading and spine-to-leaf connections within the same rack or adjacent racks
Key specifications
 Length: 2 meters
 Connector types: QSFP28 (one end) to 4 × SFP28 (other end)
 Supported standards: 100GBASE-CR4 and 25GBASE-CR
 Cable construction: AWG26 conductors
 Passive direct attach (no active electronics)
 Typical use: Short-reach copper breakout connections within racks
How to use
Install the QSFP28 end into a compatible 100G port on a switch or network device and plug the four SFP28 ends into the target 25G ports on servers or line cards. Ensure that the host devices support passive direct attach breakout cables and the intended 100G-to-4×25G mapping. Route the cable to avoid tight bends and excessive strain; observe standard data center cabling practices for clear airflow and secure connector seating. No additional configuration is required on the cable itself, but verify link status and speed negotiation on connected devices after insertion.
Usage recommendations
Use this 2 m passive breakout cable for within-rack or adjacent-rack connections where short, reliable 100G-to-4×25G splitting is needed. Avoid installation in environments with high electromagnetic interference and do not exceed recommended bend radius for AWG26 copper assemblies. Confirm compatibility with switch firmware and port mapping before deployment to ensure proper link negotiation.

## FAQ

### How much does the Network Cable BlueLAN Alcatel-Lucent 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 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