# 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-nk-bl--10894284
**Data updated:** 2026-03-07 18:09 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** Q28-4S28-DAC-2M-NK-BL
**EAN:** 4063232122724
**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-nk-bl--10894284

## 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 4x25GBASE-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 is a passive Direct Attach Copper breakout cable engineered for short-reach, high-bandwidth connections. With a QSFP28 plug on one end and four SFP28 plugs on the other, the cable supports 100GBASE-CR4 and 4x25GBASE-CR operation over a 2 meter length. AWG26 conductors provide low latency and stable signal integrity for aggregation, top-of-rack switching and server interconnects in data center and high-performance computing installations.
Advantages
The cable delivers a compact and cost-effective solution for consolidating a 100 Gbps QSFP28 port into four independent 25 Gbps SFP28 links without active electronics. Passive construction reduces power consumption and simplifies deployment where short copper runs are appropriate. The 2 m length balances reach and cable management, and the breakout design facilitates flexible lane mapping and port splitting in switch and server environments.
Suitable for
 Top-of-rack switch to aggregation switch connections
 Server to switch high-speed links
 Cross-connects in racks and cabinets with short copper runs
 Applications requiring 100G to 4×25G breakout for traffic segmentation
Key specifications
 Connector type: QSFP28 to 4 × SFP28
 Supported standards: 100GBASE-CR4 and 4×25GBASE-CR
 Length: 2 meters
 Cable gauge: AWG26
 Cable type: Passive direct attach copper (DAC) breakout
 Typical use: Short-reach, high-bandwidth copper interconnect
How to use
Insert the QSFP28 connector into the 100 Gbps QSFP28 port and connect each SFP28 plug to the corresponding 25 Gbps SFP28 ports on the destination device. Ensure both ends are fully seated and that port settings on switches and servers are configured for the intended lane mapping and link speeds. No external power or transceiver modules are required for passive operation. Verify link status and perform any necessary port negotiation or manual configuration as per your network equipment documentation.
Usage recommendations
Use the cable for short copper runs within racks or between adjacent racks where 2 m reach is sufficient. Avoid tight bends and excessive mechanical stress on the connectors; maintain recommended bend radius to preserve signal integrity. Confirm compatibility with networking equipment firmware and port breakout modes before deployment to ensure correct link operation.

## 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