# DAC cable CBO QSFP28-DAC-2M 2 m passive copper for QSFP28 ports

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-2m-mr-bl--4466821
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-2M-MR-BL
**EAN:** 4063232101583
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 124.49 €
**Prices and availability valid until:** 2026-08-07 23:59
**Price without VAT (21%):** 102.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp28-dac-2m-mr-bl--4466821

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.08.2026 | free |
| Pickup points | 11.08.2026 | 1.89 EUR |
| Courier delivery to door | 11.08.2026 | 4.99 EUR |

## Summary description

Passive copper DAC cable CBO QSFP28-DAC-2M is a 2-meter direct attach cable designed for QSFP28 ports. It provides a short-reach, low-latency connection between compatible networking equipment without optical transceivers. Typical use cases include interconnecting switches, routers and servers in data centers or rack-to-rack links, offering reliable, cost-effective connectivity and simplified installation.

## Long description

The BlueOptics DAC cable CBO QSFP28-DAC-2M is a 2-metre passive copper direct attach cable designed for QSFP28 ports. Intended for short-reach links, this cable connects compatible switches, routers and servers without the need for separate optical transceivers. Its fixed-length copper assembly provides a low-latency electrical link suitable for rack-to-rack or within-rack interconnects in data centre environments where cost-effective and reliable connectivity is required.
Advantages
The passive copper construction offers low power consumption and minimal latency compared with active or optical solutions, and installation is simplified because no module insertion is required. The 2 m length balances flexibility and signal integrity for common rack and adjacent-rack distances. Compatibility with QSFP28 ports makes the cable suitable for 100 Gigabit Ethernet and other QSFP28-capable equipment, providing a plug-and-play connection that reduces component count and operational complexity.
Suitable for
Short-reach data centre links between switches and routers
Rack-to-rack connections and within-rack interconnects
Direct server-to-switch or server-to-router connections
Environments where low latency and low power are priorities
Key specifications
Cable type: passive twinax copper direct attach
Interface: QSFP28 to QSFP28
Length: 2 metres
Data rate support: designed for 100 Gigabit-class links (QSFP28)
Latency: low-latency electrical connection suitable for short-reach links
Installation: plug-and-play, no separate transceivers required
How to use
Insert each QSFP28 connector into the corresponding port on the networking devices until the connector latches. Ensure both ends seat fully and that port activity indicators show link status according to the equipment’s documentation. For best performance, avoid sharp bends and excessive strain on the cable; maintain recommended bend radius and secure the cable so it does not obstruct airflow or other components. If link negotiation fails, verify port configuration and compatibility with QSFP28 passive DACs in the device manuals.
Usage recommendations
Use the cable for short-distance links within racks or between adjacent racks. Verify compatibility with your switches, routers and servers before deployment, and follow standard electrostatic discharge (ESD) precautions when handling connectors. Replace the cable if physical damage, bent contacts or repeated connection issues occur.

## FAQ

### How much does the DAC cable CBO QSFP28-DAC-2M 2 m cost, and is it available for purchase?

The price is 124.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 269 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 06.08.2026 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/4466821/59856727_large.webp