# 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-rw-bl--10894278
**Data updated:** 2026-03-07 18:09 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** Q28-4S28-DAC-2M-RW-BL
**EAN:** 4063232123042
**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-rw-bl--10894278

## 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 gauge, it ensures high-speed data transfer and reliable performance. Ideal for data centers and high-performance computing environments, this cable offers excellent signal integrity and low latency, making it perfect for demanding applications.

## 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 SFP28 ports. At 2 meters length and constructed with AWG26 conductors, the cable supports aggregated 100 Gbps connections while providing individual 25 Gbps lanes for each SFP28. It is designed for short-reach, high-density interconnects in networking equipment where low latency and reliable signal integrity are required.
Advantages
This QSFP28 to 4xSFP28 DAC offers a compact, cost-effective alternative to fiber or active optical solutions for short-distance connections. Passive construction eliminates the need for external power, reduces heat and complexity in rack deployments, and simplifies installation. AWG26 wiring and a 2 m length balance flexibility with minimal crosstalk, delivering consistent 25 Gbps per lane performance suitable for top-of-rack switches, servers, and aggregation devices.
Suitable for
 High-density switch-to-server connections in data centers
 Aggregation of four 25 Gbps SFP28 links into a single 100 Gbps QSFP28 port
 Short-reach interconnects inside racks or between adjacent cabinets
 High-performance computing clusters and storage networking
Key specifications
 Connection type: QSFP28 to 4 × SFP28 breakout
 Standard: 100GBASE-CR4 (aggregate), 25GBASE-CR per lane
 Length: 2 meters
 Cable gauge: AWG26
 Construction: Passive copper direct attach
 Typical use: Short-reach, high-density interconnects
How to use
Connect the QSFP28 end to the 100G port on your switch or host adapter and plug the four SFP28 ends into the corresponding 25G ports on target devices. Ensure equipment supports passive DAC breakouts and that port firmware or operating system recognizes breakout mode where applicable. Install with gentle bends; avoid sharp kinks and maintain recommended bend radius to preserve signal integrity. No external power or additional transceivers are required for operation.
Usage recommendations
Use this cable for short-distance rack-level connectivity where passive, low-latency links are acceptable. Verify compatibility with your network hardware's breakout capabilities before deployment. For distances beyond typical rack-level spans or where longer reaches are needed, consider active optical cables or fiber-based transceivers instead.

## 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