# Network Cable BlueLAN QSFP28-4SFP28-DAC-2M QSFP28 to 4x25GBASE-CR SFP28 100GBASE-CR4 2m Blue

**URL:** https://aio.lv/en/product--blueoptics-q28-4s28-dac-2m-le-bl--10894290
**Data updated:** 2026-03-07 18:09 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** Q28-4S28-DAC-2M-LE-BL
**EAN:** 4063232122953
**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-le-bl--10894290

## 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 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 4x25GBASE-CR standards. With a length of 2 meters and AWG26 wire gauge, this cable ensures reliable performance and minimal signal loss, making it ideal for data centers and high-performance computing environments.

## Long description

The BlueLAN QSFP28-4SFP28-DAC-2M is a passive direct attach breakout cable engineered for high-speed short-reach interconnects. One end terminates in a QSFP28 connector and the other end splits into four SFP28 plugs, enabling a single 100G port to connect to four 25G ports. The 2 meter length and AWG26 conductor gauge provide a balance of flexibility and controlled impedance to support 100GBASE-CR4 and 4x25GBASE-CR links with low latency and minimal signal degradation.
Advantages
This cable offers straightforward, low-power connectivity without the need for external transceivers or optical modules. Its passive copper construction reduces complexity and power consumption compared with active or optical solutions while preserving signal integrity over short distances. The breakout design simplifies port aggregation and migration scenarios where a single high-speed interface must be distributed across multiple 25G endpoints.
Suitable for
 Data center top-of-rack and spine-switch interconnections
 High-performance computing cluster node links
 Switch-to-switch aggregation or port breakout deployments
 Short-reach server uplinks and appliance connections
Key specifications
 Connector type: QSFP28 (one end) to 4 × SFP28 (other end)
 Supported standards: 100GBASE-CR4; 4×25GBASE-CR
 Length: 2 meters
 Wire gauge: AWG26
 Cable type: Passive direct attach copper breakout
 Typical applications: Short-reach copper interconnects for racks and switches
How to use
Insert the QSFP28 connector into the 100G QSFP28 port and plug each SFP28 connector into the corresponding 25G SFP28 ports on the target devices. Ensure ports are powered down or follow hot-plug guidelines specified by the equipment manufacturer when connecting or disconnecting. Verify link status and speed settings on connected switches or servers and, if necessary, configure the host or switch interfaces for 25G operation or 100G breakout mode according to device documentation.
Usage recommendations
Use this passive breakout cable for short intra-rack or adjacent-rack connections up to 2 meters. Avoid tight bends and maintain recommended bend radius to prevent stress on the AWG26 conductors. For distances beyond 2 meters or where active signal conditioning is required, consider active copper or optical options. Confirm compatibility with your switch or server vendor's supported cable list to ensure proper recognition and full link speed.

## 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