# DAC cable CBO QSFP28-DAC-3M 3m passive copper QSFP28 to QSFP28

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-3m-ma-bl--4466855
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-3M-MA-BL
**EAN:** 4063232101989
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 134.49 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 111.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp28-dac-3m-ma-bl--4466855

## 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

3-meter passive copper Direct Attach Cable (DAC) from CBO, model QSFP28-DAC-3M for QSFP28 ports. Designed for short-reach high-speed connections between network devices such as switches and servers, it supports QSFP28 interfaces and provides a cost-effective, low-latency link without transceivers. Ideal for data center top-of-rack, aggregation and server interconnects where a 3 m fixed copper link is required.

## Long description

The CBO QSFP28-DAC-3M is a 3-meter passive copper Direct Attach Cable (DAC) designed for QSFP28 ports. This BlueOptics cable provides a fixed, low-latency electrical link between devices with QSFP28 interfaces, enabling 100Gb/s connections without separate optical transceivers. It is intended for short-reach links in data center environments such as top-of-rack, aggregation and server-to-switch interconnects where a reliable, cost-effective copper cable is required.
Advantages
The passive 3 m DAC offers lower power consumption and reduced latency compared with optical modules and active cables. Being a direct attach solution, it eliminates the need for separate transceivers, simplifying installation and lowering total hardware cost. Its QSFP28-to-QSFP28 form factor ensures compatibility with standard 100Gb/s QSFP28 ports and supports stable, high-throughput connections suitable for dense rack deployments in data centers.
Suitable for
 Short-reach 100Gb/s links between switches and servers
 Top-of-rack (ToR) and aggregation layer interconnects
 High-density rack installations requiring fixed copper links
 Environments where low latency and low power are priorities
Key specifications
 Connector type: QSFP28 to QSFP28
 Cable type: Passive copper Direct Attach Cable (DAC)
 Length: 3 meters
 Data rate support: up to 100 Gbps aggregated (QSFP28)
 Application: short-reach data center interconnects
 Form factor: fixed twinax copper cable with integrated connectors
How to use
Insert each QSFP28 connector into the corresponding QSFP28 port on the networking devices until the latch engages. Ensure both ports support passive DAC connections and that devices are powered down or follow hot-plug guidelines provided by the device manufacturer if inserting while powered. After installation, verify link status on both devices and monitor for appropriate data rates and error counters. For removal, release the latch and pull the connector straight out to avoid stress on the cable and ports.
Usage recommendations
Use the cable within standard data center environmental conditions and avoid tight bends or kinks; maintain the manufacturer’s minimum bend radius. Prefer passive DACs for short, fixed-length connections where low latency, low power consumption, and cost efficiency are required. Confirm compatibility with your switch or server vendor’s supported cable list to ensure link recognition and optimal performance.

## FAQ

### How much does the DAC cable CBO QSFP28-DAC-3M 3m cost, and is it available for purchase?

The price is 134.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 337 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/4466855/59858135_large.webp