# DAC cable CBO SFP28-DAC-0.5M 0.5m Passive Copper — SFP28 direct-attach copper, 0.5 m

**URL:** https://aio.lv/en/product--blueoptics-sfp28-dac-05m-va-bl--4471194
**Data updated:** 2026-02-25 16:35 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP28-DAC-0.5M-VA-BL
**EAN:** 4063232098432
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 66.49 €
**Prices and availability valid until:** 2026-08-06 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-va-bl--4471194

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 05.08.2026 | free |
| Pickup points | 10.08.2026 | 1.89 EUR |
| Courier delivery to door | 10.08.2026 | 4.99 EUR |

## Summary description

Passive 0.5 m DAC cable CBO SFP28-DAC-0.5M for SFP28 ports. Copper direct-attach cable designed for short-reach 25GbE connections between switches, servers and network equipment. Plug-and-play SFP28 twinax solution with low latency and reduced power compared with active optical transceivers. Suitable for data centers and rack-to-rack links where a short, reliable copper connection is needed.

## Long description

Passive 0.5 m DAC cable CBO SFP28-DAC-0.5M is a direct-attach copper (twinax) cable designed for SFP28 ports and short-reach 25GbE connections. The cable provides a low-latency, low-power alternative to optical transceivers for connecting switches, servers and other network equipment inside racks or between adjacent racks. Its fixed 0.5 m length and SFP28 connectors enable plug-and-play installation for data center and enterprise environments that require a compact and reliable copper link.
Advantages
This passive DAC cable offers minimal signal conversion overhead and reduced power consumption compared with active optics. The twinax copper construction delivers low latency and consistent electrical performance over short distances. Its standardized SFP28 connectors ensure broad compatibility with equipment that supports SFP28 direct-attach copper, while the short fixed length reduces clutter and simplifies cable management in dense rack deployments.
Suitable for
 Short-reach 25GbE connections between top-of-rack switches and servers
 Rack-to-rack links in adjacent cabinets
 High-density data center interconnects where low latency is required
 Environments seeking lower power consumption and reduced heat compared with active optical modules
Key specifications
 Interface: SFP28 to SFP28
 Data rate: 25 Gigabit Ethernet
 Length: 0.5 m (fixed)
 Cable type: Passive twinax copper
 Latency: low electrical latency suitable for short links
 Power: passive design with lower power draw than active optical transceivers
 Usage environment: suitable for data center and rack installations
How to use
Install the DAC cable by inserting each SFP28 connector into the appropriate SFP28 port on your switches, servers or network devices until the connector latches. No additional configuration or transceiver modules are required for basic link operation; the cable operates as a direct-attach copper connection. Verify link status on connected devices and confirm negotiated speed of 25GbE where supported. Use device documentation to enable or check port settings if the link does not come up automatically.
Usage recommendations
Use the cable for short, intra-rack or adjacent-rack connections up to 0.5 m; avoid routing it through long cable runs. Ensure compatible SFP28 ports and firmware support on both endpoints for optimal performance. Protect connectors from dust when not in use and avoid sharp bends near the connector to maintain signal integrity.

## FAQ

### How much does the DAC cable CBO SFP28-DAC-0.5M 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 05.08.2026 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/4471194/59856193_large.webp