# CBO SFP28 Direct Attach Copper (DAC) Cable SFP28-DAC-0.5M, 0.5 m Passive

**URL:** https://aio.lv/en/product--blueoptics-sfp28-dac-05m-ql-bl--4471184
**Data updated:** 2026-02-25 16:35 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP28-DAC-0.5M-QL-BL
**EAN:** 4063232098326
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 66.49 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 54.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfp28-dac-05m-ql-bl--4471184

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

Passive CBO SFP28 Direct Attach Copper (DAC) cable, model SFP28-DAC-0.5M, 0.5 m length. Designed for SFP28 ports to provide low-latency, short-reach 25GbE interconnects between switches, NICs and servers. Plug-and-play copper solution requiring no transceivers, suitable for data center top-of-rack connections and server aggregation where a short, cost-effective link is needed.

## Long description

Passive CBO SFP28 Direct Attach Copper (DAC) Cable SFP28-DAC-0.5M, 0.5 m Passive is a short-reach copper interconnect designed for SFP28 ports to deliver 25GbE connectivity between switches, NICs and servers. This 0.5 metre plug-and-play cable removes the need for separate transceivers and is intended for low-latency, cost-effective links inside racks or between adjacent devices in data centre environments.
Advantages
The cable provides a low-latency electrical connection with minimal power consumption because it is a passive design. Its fixed 0.5 m length reduces signal degradation and is well suited for top-of-rack and short aggregation connections. Being a direct-attach solution, it simplifies installation with no configuration or additional transceivers required, and it typically offers a lower total cost compared with optical alternatives for equivalent short distances.
Suitable for
Top-of-rack switch to server connections in data centres
Inter-switch short links within the same rack or adjacent racks
Server NIC aggregation and high-performance computing clusters requiring 25GbE
Environments where low latency and low power are priorities
Key specifications
Interface: SFP28 electrical direct attach copper
Nominal data rate: 25 Gigabit Ethernet (25GbE)
Length: 0.5 metres (fixed)
Design: Passive (no active components or power required)
Connector type: SFP28 form factor plugs on both ends
Application: Short-reach rack and server interconnects
How to use
Install the cable by inserting each SFP28 plug into the corresponding SFP28 port on the devices to be connected, ensuring proper seating and latch engagement. No transceivers, configuration changes or additional drivers are required for standard SFP28 host interfaces; the link should negotiate at 25GbE or fall back according to device capabilities. For reliable operation, verify that the switch and server NIC support passive SFP28 DAC cables and check port status LEDs or management interfaces after insertion.
Usage recommendations
Use this 0.5 m passive DAC cable for short, intra-rack connections where 25GbE performance and low latency are required. Avoid routing the cable through high-heat or high-electrical-noise areas and do not bend the cable sharply at the connector to preserve signal integrity and mechanical reliability.

## FAQ

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

The price is 66.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 402 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 27.07.2026 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/4471184/59856191_large.webp