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

**URL:** https://aio.lv/en/product--blueoptics-sfp28-dac-05m-cn-bl--4471159
**Data updated:** 2026-02-25 16:35 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP28-DAC-0.5M-CN-BL
**EAN:** 4063232098074
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 66.49 €
**Prices and availability valid until:** 2026-08-05 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-cn-bl--4471159

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 04.08.2026 | free |
| Pickup points | 07.08.2026 | 1.89 EUR |
| Courier delivery to door | 07.08.2026 | 4.99 EUR |

## Summary description

Passive SFP28 direct attach copper (DAC) cable by CBO, model SFP28-DAC-0.5M, length 0.5 m. Designed for short-reach 25GbE or SFP28 connections between switches, routers and NICs supporting SFP28 ports. Offers a compact, low-latency wired link with no external power, easy plug-and-play installation and reliable signal integrity for rack-to-rack or intra-rack connectivity.

## Long description

Passive SFP28 Direct Attach Copper Cable CBO SFP28-DAC-0.5M is a 0.5 m fixed-length twinax cable designed for short-reach 25GbE or SFP28 connections. Manufactured by BlueOptics, this passive DAC provides a direct wired link between SFP28 ports on switches, routers and network interface cards (NICs). It requires no external power, supports plug-and-play installation and is intended for reliable rack-to-rack or intra-rack connectivity where low latency and signal integrity are required.
Advantages
The cable offers a compact, low-latency connection with minimal installation effort and no additional power source. Its passive design reduces operational complexity and the short 0.5 m length minimizes signal attenuation and crosstalk for short-distance interconnects. Being a direct attach solution, it eliminates the need for transceivers and fiber patching for compatible SFP28 ports.
Suitable for
Short-reach 25GbE links between switches in the same rack
Direct connections between routers and NICs that support SFP28
Intra-rack server-to-switch interconnects with SFP28 ports
Key specifications
Connector type: SFP28 direct attach copper (twinax) compatible
Length: 0.5 m
Data rate: 25 Gbps class (for SFP28 links)
Design: Passive (no external power required)
Use case: Short-reach, rack-to-rack or intra-rack connectivity
How to use
Insert each SFP28 connector into the corresponding SFP28 port on the devices to be linked, ensuring proper seating and latch engagement. Verify that both endpoints support passive SFP28 direct attach copper cables and that compatible link settings are configured on connected network equipment. No additional transceivers, power adapters or fiber patch cords are required. After installation, monitor the link status through the devices' management interfaces to confirm successful negotiation and operation.
Usage recommendations
Use this 0.5 m passive DAC for short-distance links within the same rack or adjacent racks. Avoid bending the cable sharply, exposing it to excessive mechanical stress or exceeding the supported operating conditions of the connected equipment. Confirm compatibility with your switch or server vendor for passive SFP28 DACs before deployment.

## FAQ

### How much does the CBO SFP28 Passive DAC Cable SFP28-DAC-0.5M 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 — 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 04.08.2026 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/4471159/59857418_large.webp