# DAC cable CBO DAC-Q28-4SFP28-25G 3 m — direct attach copper, 4× SFP28, 25Gbps per lane

**URL:** https://aio.lv/en/product--blueoptics-dac-q28-4sfp28-25g-3m-bl--4470674
**Data updated:** 2026-02-25 16:35 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** DAC-Q28-4SFP28-25G-3M-BL
**EAN:** 4063232641829
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 192.99 €
**Prices and availability valid until:** 2026-08-20 23:59
**Price without VAT (21%):** 159.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-dac-q28-4sfp28-25g-3m-bl--4470674

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 19.08.2026 | free |
| Pickup points | 24.08.2026 | 1.79 EUR |
| Courier delivery to door | 24.08.2026 | 4.99 EUR |

## Summary description

CBO DAC-Q28-4SFP28-25G is a 3-meter direct attach copper (DAC) cable with four SFP28 connectors, supporting 25 Gbps per lane for high-speed short-reach connections. Designed for switch-to-switch, server-to-switch or within-rack links, it provides low latency and power-efficient connectivity. Ideal for data centers and enterprise networking where reliable 25Gb connectivity is required.

## Long description

CBO DAC-Q28-4SFP28-25G is a 3-meter direct attach copper (DAC) cable with four SFP28 connectors, engineered for short-reach 25 Gbps per lane links. The assembly is intended for use in data center and enterprise network environments where low latency, predictable performance and energy-efficient interconnects are required. It supports multi-lane configurations and is suitable for connecting switches, servers and within-rack equipment without the need for optical transceivers.
Advantages
This direct attach copper cable delivers high-density, low-latency connectivity while consuming less power than equivalent optical modules. Its fixed-length 3 m copper construction reduces signal conversion overhead and simplifies cabling between adjacent racks or devices within the same rack. The integrated SFP28 connectors provide compatibility with equipment that accepts SFP28 form-factor modules and allow multi-lane 25 Gbps operation with a single cable assembly.
Suitable for
Short-reach switch-to-switch connections in top-of-rack and leaf-spine architectures
Server-to-switch links inside racks or between adjacent racks
High-density patching in data center topologies requiring 25 Gbps per lane
Key specifications
Cable type: direct attach copper (DAC)
Connector type: four SFP28 connectors (fixed-assembly)
Per-lane data rate: 25 Gbps
Aggregate lanes: quad-lane configuration
Length: 3 meters
Typical use: short-reach, within-rack or adjacent-rack links
How to use
Install the cable by inserting each SFP28 connector into the corresponding SFP28 ports on the devices to be linked, ensuring the connectors are fully seated and retention latches engage. Verify link negotiation and speed settings on the connected equipment, and check that the network interfaces report 25 Gbps per lane as expected. Route the cable to avoid sharp bends and maintain recommended bend radius to preserve signal integrity. No additional transceivers or power supplies are required for operation.
Usage recommendations
For reliable performance, use this DAC cable within its intended short-reach range and in environments with compatible SFP28-capable switches or NICs. Avoid exceeding the specified bend radius, keep the cable away from sources of strong electromagnetic interference, and verify compatibility with your equipment vendor's supported DAC assemblies when required by policy.

## FAQ

### How much does the DAC cable CBO DAC-Q28-4SFP28-25G 3 m cost, and is it available for purchase?

The price is 192.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 29 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 19.08.2026 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

## Image

https://aio.lv/img/cache/product/4470674/59855128_large.webp