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

**URL:** https://aio.lv/en/product--blueoptics-q28-4s28-dac-2m-ss-bl--10894194
**Data updated:** 2026-03-07 18:09 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** Q28-4S28-DAC-2M-SS-BL
**EAN:** 4063232122816
**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-ss-bl--10894194

## 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 supports 100GBASE-CR4 standard and features four 25GBASE-CR SFP28 connectors. 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 Direct Attach Cable is a passive breakout cable that provides a straightforward connection from a single QSFP28 100G port to four SFP28 25G ports. Designed for short-reach interconnects, the 2‑meter cable conforms to the 100GBASE-CR4 electrical standard and uses AWG26 wiring to maintain signal integrity and low insertion loss in dense networking environments.
Advantages
This cable offers a compact and cost-effective method to split a 100G QSFP28 interface into four independent 25G SFP28 links without requiring active transceivers or additional optics. The passive design reduces power consumption and heat generation, while the factory-terminated connectors provide consistent electrical performance and simple plug-and-play installation. The 2 m length is suitable for rack-to-rack or short-pod connections in data centres where controlled cable management is important.
Suitable for
 Breaking out a 100G QSFP28 port into four 25G SFP28 links
 Top-of-rack and aggregation switch interconnects
 High-performance computing clusters and server-to-switch connections
 Environments requiring low-latency, short-reach copper links
Key specifications
 Standard: 100GBASE-CR4 electrical interface
 Connector configuration: QSFP28 to 4 × SFP28
 Length: 2 meters
 Wire gauge: AWG26
 Type: Passive direct attach copper (DAC) breakout cable
 Data rates supported: 100 Gbit/s aggregated, 25 Gbit/s per SFP28 lane
How to use
Insert the QSFP28 end into the 100G-capable QSFP28 port on the switch or router and insert each SFP28 end into the target 25G-capable SFP28 ports on servers, NICs or switches. Ensure connectors are aligned with port guides and fully seated until retention latches engage. Power down equipment or follow hot-plug procedures recommended by the hardware vendor if required, and verify link status and negotiated speeds through device management interfaces after connection.
Usage recommendations
 For reliable performance, use this cable within short-reach copper distance limits and avoid sharp bends or excessive pulling; maintain proper rack cable management and ensure ports on both ends support QSFP28 and SFP28 electrical breakout functionality. Check device compatibility and firmware requirements in vendor documentation when deploying in heterogeneous environments.

## 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