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

**URL:** https://aio.lv/en/product--blueoptics-sfp28-dac-05m-ma-bl--4471175
**Data updated:** 2026-02-25 16:35 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP28-DAC-0.5M-MA-BL
**EAN:** 4063232098234
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 58.99 €
**Prices and availability valid until:** 2026-07-30 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-ma-bl--4471175

## 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

Passive direct attach copper (DAC) SFP28 cable by CBO, model SFP28-DAC-0.5M, 0.5 meter length for 25GbE SFP28 ports. Designed for short-reach high-speed connections between switches, NICs and servers where a compact, low-latency link is required. Offers plug-and-play installation with no external power, suitable for rack-mounted and data center applications.

## Long description

The CBO DAC SFP28 passive direct attach copper cable 0.5 m Marconi SFP28-DAC-0.5M is a 0.5 meter passive SFP28 twinax cable designed for 25GbE SFP28 ports. It provides a short-reach, low-latency physical link between switches, network interface cards and servers in rack-mounted and data centre environments. The cable is plug-and-play, requires no external power or configuration, and is intended for high-density topologies where compact, reliable copper connections are needed.
Advantages
This passive SFP28 DAC cable delivers low latency and consistent signal integrity for short-distance 25GbE links while keeping power consumption minimal due to the passive design. Its compact 0.5 m length reduces cable clutter in dense rack installations and supports direct connections between adjacent ports or devices. The cable is mechanically compatible with standard SFP28 ports and supports hot-plug installation for quick maintenance or upgrades.
Suitable for
 Short-reach 25GbE links between switches
 Direct connections from NICs to servers
 Top-of-rack and leaf-spine data centre deployments
 High-density rack installations requiring compact cabling
Key specifications
 Interface: SFP28 form factor, compatible with 25GbE SFP28 ports
 Cable type: Passive twinax copper assembly
 Length: 0.5 meter
 Data rate: Supports 25 Gigabit Ethernet
 Latency: Low propagation delay suitable for short-reach links
 Power: Passive operation — no external power required
 Compatibility: Designed for direct attach use between switches, NICs and servers
How to use
Insert each SFP28 connector into compatible SFP28 ports on the devices to be linked until the latch engages. The cable is plug-and-play and should be recognised by standard switch and server SFP28 interfaces without additional configuration. For hot-plug operations, ensure the connected devices support hot insertion and monitor link status indicators to confirm an active 25GbE connection.
Usage recommendations
Use this 0.5 m passive DAC where short, direct, low-latency 25GbE connections are required. Avoid routing the cable through sharp bends and maintain bend radii recommended for twinax assemblies. For longer runs or when optical isolation is needed, consider active DACs or fiber transceivers as alternatives.

## FAQ

### How much does the CBO SFP28 DAC cable 0.5 m 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 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/4471175/59860723_large.webp