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

**URL:** https://aio.lv/en/product--blueoptics-q28-4s28-dac-2m-sp-bl--10894277
**Data updated:** 2026-03-07 18:09 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** Q28-4S28-DAC-2M-SP-BL
**EAN:** 4063232122823
**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-sp-bl--10894277

## 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 a total bandwidth of 100GBASE-CR4. 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 100GBASE-CR4 2m Blue is a passive direct attach breakout cable that converts a single QSFP28 port into four SFP28 ports while supporting aggregated 100 Gbps data rates. With a 2 meter length and AWG26 conductor gauge, this cable is engineered for short-reach high-density interconnects in data centers and high-performance computing racks. It provides a low-latency, low-power physical link suitable for top-of-rack switches, aggregation panels and server NICs that accept QSFP28 and SFP28 interfaces.
Advantages
This passive DAC cable offers a simple, plug-and-play connection between QSFP28 and multiple SFP28 ports without the need for additional optical transceivers or external power. The AWG26 wiring and 2 m length minimize attenuation and crosstalk for short-link reliability, while the breakout design enables flexible port consolidation and cost-effective migration paths from 25G/10G environments to 100G infrastructures. The cable's construction reduces latency compared with optical alternatives and eliminates the need for laser-based components.
Suitable for
Top-of-rack switch to server connections in data centers
High-density switch aggregation and spine-leaf architectures
Direct links between QSFP28 ports and multiple SFP28 NICs
Short-reach connections inside network racks and equipment cabinets
Key specifications
Connector types: QSFP28 to four SFP28
Supported interface: 100GBASE-CR4 (aggregated 100 Gbps)
Length: 2 meters
Conductor gauge: AWG26
Cable type: Passive direct attach copper breakout cable
Typical use: Short-reach, high-density copper interconnect
How to use
Install the cable by inserting the QSFP28 plug into the QSFP28 port on the switch or adapter and connecting the four SFP28 plugs to the corresponding SFP28 ports on servers or devices. Ensure ports are powered off or follow hot-plug guidance from your equipment vendor when available. Verify link negotiation and speed settings on both ends after physical installation and confirm that network interfaces are configured for the expected 25 Gbps lanes or aggregated 100 Gbps operation as required by your topology.
Usage recommendations
Use this 2 m passive breakout cable for short-distance rack-level connections where low latency and reduced power consumption are priorities. Avoid routing near high-power electrical sources to minimize interference, and maintain bend radii recommended by the equipment vendor to prevent stress on the cable assemblies. For deployments beyond short-reach limits or where optical isolation is required, consider optical transceiver options 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