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

**URL:** https://aio.lv/en/product--blueoptics-q28-4s28-dac-2m-va-bl--10894192
**Data updated:** 2026-03-07 18:09 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** Q28-4S28-DAC-2M-VA-BL
**EAN:** 4063232122854
**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-va-bl--10894192

## 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 100GBASE-CR4 Direct Attach Breakout Cable, featuring a QSFP28 connector on one end and four SFP28 connectors on the other. With a length of 2 meters and AWG26 gauge, it ensures high-speed data transmission for data centers and high-performance computing environments. Its durable construction and efficient design make it an ideal choice for connecting switches and servers.

## Long description

The BlueLAN QSFP28-4SFP28-DAC-2M is a passive 100GBASE-CR4 direct attach breakout cable that connects a single QSFP28 port to four SFP28 ports. Designed for short-reach, high-bandwidth links in data centers and high-performance computing environments, this 2 meter AWG26 cable supports aggregate 100 Gbps throughput using four independent 25 Gbps lanes. The cable’s factory-terminated QSFP28 and SFP28 connectors provide a compact, low-latency physical connection for switches, routers and server NICs that accept QSFP28 and SFP28 modules.
Advantages
The breakout cable delivers a cost-effective, low-power alternative to optical transceivers and fiber cabling for short-distance interconnects. Passive construction reduces power consumption and eliminates the need for separate transceivers, while the AWG26 conductor and industry-standard connector pinouts ensure reliable signal integrity at 25 Gbps per lane. Its 2 m length balances reach and cable management in rack and cabinet deployments, and the durable jacket and molded strain reliefs increase mechanical reliability during installation and reconfiguration.
Suitable for
High-density switch-to-switch connections in top-of-rack and spine-leaf architectures
Direct server-to-switch links where SFP28 ports are available
Short-reach aggregation and breakout applications in data center racks
Environments requiring low-latency, high-bandwidth interconnects
Key specifications
Topology: QSFP28 to 4 × SFP28 breakout (100G to 4 × 25G)
Standard: 100GBASE-CR4 / 25G electrical lanes
Length: 2 meters
Cable gauge: AWG26
Connector types: QSFP28 (one end) and SFP28 (four ends)
Construction: Passive copper Direct Attach Cable (DAC)
Typical use: Short-reach, rack/cabinet interconnects
How to use
Plug the QSFP28 end into the 100G QSFP28 port on the source device and insert each SFP28 connector into the corresponding 25G ports on the destination device(s). Ensure that connectors are oriented correctly and fully seated until the latch engages. Power down or follow hot-plug guidelines of your equipment as required by the vendor before inserting or removing the cable. Verify link status and speed in the host devices to confirm successful negotiation of 25 Gbps lanes and 100 Gbps aggregate where applicable.
Usage recommendations
Use this passive breakout cable for short-distance connections within the same rack or adjacent racks. Avoid sharp bends and excessive pulling on the cable; maintain bend radii recommended for AWG26 copper cables. For runs beyond short-reach limits, consider active DACs or optical transceivers and fiber cabling. Confirm compatibility with your switch or server vendor’s supported breakout and DAC lists to ensure full functionality.

## 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