# Network Cable BlueLAN QSFP28-4SFP28-DAC-2M Direct Attach 100GBASE-CR4 2m Blue

**URL:** https://aio.lv/en/product--blueoptics-q28-4s28-dac-2m-ee-bl--10894256
**Data updated:** 2026-03-07 18:09 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** Q28-4S28-DAC-2M-EE-BL
**EAN:** 4063232122632
**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-ee-bl--10894256

## 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 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 25GBASE-CR standards. With a length of 2 meters and AWG26 gauge, this cable ensures reliable performance and low latency, making it ideal for data centers and high-performance computing environments.

## Long description

The BlueLAN QSFP28-4SFP28-DAC-2M Direct Attach Cable is a passive breakout cable engineered for high-speed interconnects in data centers and server environments. With a single QSFP28 connector breaking out to four SFP28 connectors, this 2-meter cable supports 100GBASE-CR4 and 25GBASE-CR links over copper. Constructed with AWG26 conductors and a 2 m length, it provides short-reach connectivity with low latency and predictable electrical performance for switch-to-server and switch-to-switch connections.
Advantages
The cable delivers straightforward, low-power connectivity without the need for additional transceivers, reducing port population and operational complexity. Its passive design offers minimal latency and stable signal integrity for short-reach applications. The breakout configuration allows a single 100G port to split into four independent 25G channels, enabling flexible allocation of bandwidth across multiple devices.
Suitable for
High-density data center top-of-rack switch connections
Server uplinks where a 100G port is broken out into four 25G links
Short-reach interconnects between switches and storage or compute nodes
Environments requiring low-latency copper connections within 2 m
Key specifications
Connector types: QSFP28 to 4 × SFP28
Supported standards: 100GBASE-CR4 and 25GBASE-CR
Cable type: Passive Direct Attach Copper (DAC) breakout
Length: 2 meters
Conductor gauge: AWG26
Typical use: Short-reach, high-speed copper interconnect
How to use
Insert the QSFP28 end into the 100G-capable QSFP28 port on your switch or adapter, and connect each SFP28 end to the corresponding 25G SFP28 ports on servers or other network devices. Ensure that both ends are powered down or ports are administratively disabled during insertion or removal to prevent port or device issues. After physical connection, verify link status in your network equipment management interface and configure each 25G channel as required for your network topology.
Usage recommendations
Use this cable for short-distance connections inside racks or between adjacent racks where copper breakout provides cost-effective, low-latency links. Confirm port compatibility and vendor support for passive DAC cables in your hardware documentation before deployment. Avoid sharp bends and maintain proper cable routing to preserve signal integrity.

## 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 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