# DAC cable CBO SFP28-DAC-0.5M 0.5m passive copper SFP28 to SFP28

**URL:** https://aio.lv/en/product--blueoptics-sfp28-dac-05m-qn-bl--4471185
**Data updated:** 2026-02-25 16:35 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP28-DAC-0.5M-QN-BL
**EAN:** 4063232098333
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 63.49 €
**Prices and availability valid until:** 2026-08-08 23:59
**Price without VAT (21%):** 52.47 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfp28-dac-05m-qn-bl--4471185

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.08.2026 | free |
| Pickup points | 11.08.2026 | 1.89 EUR |
| Courier delivery to door | 11.08.2026 | 4.99 EUR |

## Summary description

CBO SFP28-DAC-0.5M is a 0.5 m passive copper direct attach cable (DAC) with SFP28 connectors at both ends. Designed for high-speed 25GbE or compatible SFP28 ports, it provides a low-latency, cost-effective short-reach interconnect between switches, servers or NICs. Benefits include plug-and-play installation, reduced power consumption versus active optics, and reliable board-level connectivity for dense rack environments.

## Long description

CBO SFP28-DAC-0.5M is a 0.5 m passive copper direct attach cable with SFP28 connectors at both ends. Designed for use with 25GbE or other compatible SFP28 ports, this DAC cable provides a short-reach point-to-point connection between switches, servers, and network interface cards. Its passive copper design delivers low latency and reduced power consumption compared with active optical solutions, while offering a compact, reliable cabling option for high-density rack environments.
Advantages
The passive SFP28-to-SFP28 cable enables plug-and-play installation without additional transceivers or configuration. Its short 0.5 m length minimizes signal loss and electromagnetic exposure in tight rack layouts and supports stable, board-level connectivity for high-speed data transfer. Compared with active or optical alternatives, the copper DAC provides lower power requirements and predictable performance at a lower total cost of ownership for short-reach links.
Suitable for
Interconnecting top-of-rack switches within the same rack or adjacent racks
Connecting servers to switch ports or NICs for 25GbE links
High-density rack installations requiring low-latency short links
Lab environments and test benches needing reliable, repeatable connections
Key specifications
Connector type: SFP28 on both ends
Cable type: Passive copper direct attach cable (DAC)
Length: 0.5 metres
Data rate: Suitable for 25 Gigabit Ethernet and compatible SFP28 rates
Form factor: Twin-ax copper assembly for direct board-level connections
Latency: Low-latency design appropriate for short-reach interconnects
How to use
Install the cable by inserting each SFP28 connector into the corresponding SFP28 port on the devices to be linked. Ensure the ports are powered and that any required port settings on switches or host adapters are enabled for 25GbE operation. The passive DAC requires no external power or additional modules; once seated, the link should be recognized by standard network hardware and firmware implementing SFP28 compatibility.
Usage recommendations
Use this 0.5 m passive SFP28 DAC for short, direct links inside racks or between adjacent racks. Avoid bending the cable sharply near the connectors and maintain the recommended bend radius to preserve signal integrity. Confirm device compatibility with SFP28 passive copper assemblies in firmware or interoperability lists before deployment.

## FAQ

### How much does the CBO SFP28-DAC-0.5M 0.5m SFP28 passive DAC cost, and is it available for purchase?

The price is 63.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 400 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 06.08.2026 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/4471185/59853612_large.webp