# CBO DAC SFP28-DAC-0.5M 0.5 m passive direct attach copper cable for SFP28 ports

**URL:** https://aio.lv/en/product--blueoptics-sfp28-dac-05m-ao-bl--4471155
**Data updated:** 2026-02-25 16:35 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP28-DAC-0.5M-AO-BL
**EAN:** 4063232098029
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 58.99 €
**Prices and availability valid until:** 2026-08-02 23:59
**Price without VAT (21%):** 48.75 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfp28-dac-05m-ao-bl--4471155

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.89 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

Passive CBO DAC SFP28-DAC-0.5M is a 0.5 m direct attach copper cable designed for SFP28 ports. It provides a short-reach, low-latency electrical connection between compatible network devices, ideal for switch-to-switch or switch-to-server links in data centers and rack deployments. The compact passive design requires no external power or configuration and offers a cost-effective, reliable interconnect for 25GbE environments.

## Long description

Passive CBO DAC SFP28-DAC-0.5M is a 0.5 m direct attach copper cable designed for SFP28 ports. It provides a short-reach, low-latency electrical connection between compatible network devices and is intended for 25 Gigabit Ethernet environments. The cable uses a compact, passive construction that requires no external power or additional configuration, making it suitable for dense rack deployments and connections inside data center topologies where reliable, cost-effective interconnects are needed.
Advantages
The cable delivers low latency and stable signal integrity over short distances, supporting high-throughput links between switches and servers. Its passive design reduces power consumption compared with active optical or powered DAC options and simplifies installation since no driver or configuration is required. The 0.5 m length minimizes cable clutter in server racks and short patching runs, while SFP28 compatibility ensures straightforward plug-and-play interoperability with equipment that supports SFP28 interfaces.
Suitable for
 Short-reach switch-to-switch connections within a rack
 Switch-to-server links in data center top-of-rack configurations
 High-density cabling runs where short, fixed-length interconnects are needed
 25 Gigabit Ethernet (.25GbE) uplinks and server connections
Key specifications
 Connector type: SFP28-compatible plug
 Cable type: Passive direct attach copper (DAC)
 Nominal length: 0.5 m
 Data rate support: 25 Gbps (per port)
 Typical use: Short-reach electrical interconnect for rack and data center environments
 Power requirements: Passive, no external power needed
How to use
Insert each SFP28 connector into the appropriate SFP28 port on the network devices until the module latches. Ensure devices are powered and configured to use the corresponding SFP28 interface. No additional drivers or external power are required for the passive cable itself. Verify link status on both devices and check port LEDs or management interfaces to confirm a stable 25GbE connection. For best signal performance, keep the cable run within the specified short-reach distance and avoid tight bends at the connector ends.
Usage recommendations
Install the cable in straight, untwisted runs and avoid sharp bends to maintain signal integrity. Use this 0.5 m passive DAC for intra-rack connections and short patching between adjacent devices; for longer distances or different power/active requirements, consider appropriate active DACs or optical transceivers.

## FAQ

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

The price is 58.99 € (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 03.08.2026 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/4471155/59856189_large.webp