# Direct Attach Cable (DAC) CBO SFP28-DAC-2M Marconi, passive 2 m, SFP28 twinax

**URL:** https://aio.lv/en/product--blueoptics-sfp28-dac-2m-ma-bl--4471257
**Data updated:** 2026-02-24 11:00 (EET)
**Category:** Network Media Converters
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP28-DAC-2M-MA-BL
**EAN:** 4063232099149
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 67.99 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 56.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfp28-dac-2m-ma-bl--4471257

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

CBO Marconi SFP28-DAC-2M is a 2-meter passive SFP28 Direct Attach Cable (DAC) designed for short-reach high-speed connections. Compatible with SFP28 ports, it provides a low-latency twinax copper link for 25 Gbps applications, server-to-switch or switch-to-switch interconnects in racks and data centers, offering plug-and-play installation and reduced power consumption.

## Long description

CBO Marconi SFP28-DAC-2M is a 2-meter passive SFP28 Direct Attach Cable (DAC) designed for short-reach high-speed connections. The cable uses a twinax copper construction and is compatible with SFP28 ports, enabling 25 Gbps links between servers and switches or switch-to-switch interconnects within racks and data centers. The passive design provides a low-latency physical connection with no active optics, supporting plug-and-play installation and reduced power consumption compared with optical transceivers.
Advantages
The DAC offers direct electrical connectivity with minimal latency and stable signal integrity over short distances. Its SFP28 form factor ensures compatibility with SFP28 ports and straightforward installation without additional transceivers. Being a passive twinax cable, it consumes no extra power for signal conversion and typically reduces total cost of ownership for short-reach 25 Gbps links in dense rack environments.
Suitable for
 25 Gbps server-to-switch connections in data center racks
 Switch-to-switch interconnects within the same rack or adjacent racks
 Short-reach high-density top-of-rack deployments
 Environments prioritizing low latency and reduced power consumption
Key specifications
 Interface: SFP28 twinax (SFP28 connectors at both ends)
 Length: 2 meters
 Data rate: 25 Gbps per link
 Type: Passive twinax copper direct attach cable
 Typical use: Short-reach, rack-level interconnects
How to use
Install the SFP28-DAC-2M by inserting each SFP28 connector into the corresponding SFP28 port on the devices to be connected. Ensure that both ports support SFP28 passive DACs and that link settings on connected equipment match the intended 25 Gbps operation. The cable is plug-and-play; after seating the connectors, verify link LEDs or management interfaces to confirm a successful connection.
Usage recommendations
Use this passive DAC for short, rack-level connections where 2 m length is sufficient. Avoid running the cable near high electromagnetic interference sources and do not bend the cable sharply; follow the manufacturer's minimum bend radius. Verify device compatibility with SFP28 passive DACs in switch or server documentation before deployment.

## FAQ

### How much does the CBO SFP28-DAC-2M Marconi 2 m SFP28 DAC cost, and is it available for purchase?

The price is 67.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 441 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 27.07.2026 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/4471257/59856204_large.webp