# Passive SFP28 Twinax Copper Cable CBO SFP28-DAC-2M 2 m for 25GbE Direct Attach

**URL:** https://aio.lv/en/product--blueoptics-sfp28-dac-2m-co-bl--4471242
**Data updated:** 2026-02-25 16:35 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP28-DAC-2M-CO-BL
**EAN:** 4063232098999
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 75.99 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 62.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfp28-dac-2m-co-bl--4471242

## 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

Passive SFP28 twinax copper direct-attach cable from CBO, model SFP28-DAC-2M, 2 meters long. Designed for direct server-to-switch and switch-to-switch 25GbE connections using SFP28 ports. Offers low-latency, cost-effective short-reach connectivity without transceivers. Ideal for data centers and rack-to-rack links where a reliable, short-distance 25GbE link is required.

## Long description

Passive SFP28 Twinax Copper Cable CBO SFP28-DAC-2M is a 2-meter direct-attach cable designed for 25GbE connections between SFP28 ports. This copper twinax assembly connects servers, switches and storage devices without separate transceivers, providing a compact and cost-efficient solution for short-reach links in data centers and rack-to-rack environments. The cable supports low-latency, high-throughput transmission suitable for modern 25 Gigabit Ethernet networks where short distance connectivity and predictable performance are required.
Advantages
The passive twinax copper design eliminates the need for optical transceivers, reducing component and power costs while simplifying installation. Its fixed 2 m length offers predictable channel characteristics and minimal signal degradation across typical rack and row distances. The SFP28 form factor ensures compatibility with standard 25GbE SFP28 ports and provides low latency and consistent electrical performance suited to high-density networking environments.
Suitable for
Server-to-switch 25GbE connections within racks
Switch-to-switch short-reach links in the same rack or adjacent racks
Top-of-rack to leaf aggregation links in data center networks
High-density ports where low cost and low power per link are important
Key specifications
Interface: SFP28 to SFP28 copper direct attach
Nominal data rate: 25 Gigabit Ethernet
Cable type: Passive twinax copper
Length: 2 meters
Form factor: SFP28 compatible connector modules
Use case: Short-reach, low-latency electrical connection
How to use
Insert each SFP28 connector end into the corresponding SFP28 port on the two devices to be connected. Ensure ports are powered down or follow hot-plug guidelines of your hardware if required by the vendor. After insertion, verify link status on both devices and configure interfaces according to network settings (speed/duplex/autonegotiation) if necessary. No transceiver modules or fibre patch cords are required; the cable provides a direct electrical channel between devices.
Usage recommendations
Use this passive 2 m twinax cable for short, direct 25GbE connections inside racks or between adjacent racks. Verify SFP28 port compatibility and platform support for passive DACs with your switch or server vendor documentation before deployment. Avoid excessive bending or mechanical stress on the cable and maintain proper airflow in dense racks to preserve signal integrity and connector reliability.

## FAQ

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

The price is 75.99 € (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/4471242/59856201_large.webp