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

**URL:** https://aio.lv/en/product--blueoptics-sfp28-dac-05m-lc-bl--4471172
**Data updated:** 2026-02-25 16:35 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP28-DAC-0.5M-LC-BL
**EAN:** 4063232098203
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 66.49 €
**Prices and availability valid until:** 2026-07-30 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-lc-bl--4471172

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.07.2026 | free |
| Pickup points | 03.08.2026 | 1.89 EUR |
| Courier delivery to door | 03.08.2026 | 4.99 EUR |

## Summary description

CBO SFP28-DAC-0.5M is a 0.5 m passive copper DAC cable with SFP28 connectors on both ends. Designed for high-speed 25GbE interconnects between switches, servers, and NICs, it provides a cost-effective, low-latency direct attach solution for short-reach links in data centres and server rooms. Passive design requires no external power or transceivers.

## Long description

CBO SFP28-DAC-0.5M is a 0.5 m passive copper direct attach cable with SFP28 connectors on both ends, designed for short-reach 25GbE interconnects. It provides a low-latency, low-power physical link between switches, servers and network interface cards without requiring external transceivers or additional power. The compact, fixed-length construction simplifies rack cabling in data centres and server rooms where reliable high-speed links are needed over short distances.
Advantages
The passive copper design offers cost-effective connectivity with minimal power consumption and very low latency compared to optical transceivers. SFP28 connectors on both ends ensure compatibility with 25GbE ports that accept SFP28 direct attach cables. The short 0.5 m length reduces signal degradation and crosstalk in dense rack environments, and the fixed assembly eliminates the need to manage separate transceivers and patch cords.
Suitable for
 Short-reach 25GbE links between switches in the same rack or adjacent racks
 Direct connections from servers to top-of-rack switches
 Interconnects between network interface cards (NICs) and switch ports
 High-density cabling scenarios in data centres and server rooms
Key specifications
 Connector type: SFP28 to SFP28 (both ends)
 Length: 0.5 m (fixed)
 Cable medium: passive copper twinax
 Data rate: supports 25 Gigabit Ethernet (25GbE)
 Latency: low-latency direct attach design
 Power: passive, requires no external power or transceivers
 Operating environment: intended for rack and short-reach data centre use
How to use
Insert each SFP28 connector into the corresponding 25GbE SFP28 port until it latches. Ensure compatible ports are used and that devices are powered according to their manufacturer instructions. No separate transceivers or power sources are required for the cable to operate. After installation, verify link status and negotiated speed on connected devices and adjust interface settings if necessary.
Usage recommendations
Use this 0.5 m passive DAC cable for direct, short-distance connections inside racks or between adjacent racks where 25GbE links are needed. Avoid running the cable across long distances or in environments with excessive electromagnetic interference. Handle connectors by their housings and avoid bending the cable sharply to maintain signal integrity.

## FAQ

### How much does the CBO SFP28-DAC-0.5M 0.5 m passive DAC cable 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 29.07.2026 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/4471172/59854138_large.webp