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

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-3m-cp-bl--4466845
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-3M-CP-BL
**EAN:** 4063232101835
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 134.49 €
**Prices and availability valid until:** 2026-07-29 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-cp-bl--4466845

## 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 copper Direct Attach Cable (DAC) by CBO, model QSFP28-DAC-3M, 3 meters long. Designed for QSFP28 interfaces to provide a short-reach, low-latency, cost-effective connection between network devices such as switches, routers and servers. Suitable for data center interconnects and high-speed 100GbE links where active optics are unnecessary.

## Long description

The DAC cable CBO QSFP28-DAC-3M is a 3 meter passive copper Direct Attach Cable designed for QSFP28 ports. It provides a short-reach, low-latency electrical connection for 100 Gigabit Ethernet links between switches, routers and servers in data center environments. The cable is intended for scenarios where optical transceivers are unnecessary and a cost-effective, power-efficient alternative is preferred.
Advantages
This passive QSFP28 to QSFP28 cable offers predictable latency and low power consumption because it contains no active optical components. Its fixed 3 m length simplifies planning for rack-to-rack or shelf-to-shelf interconnects while reducing the need for separate transceivers. The copper assembly supports 100GbE data rates and is compatible with standard QSFP28 interfaces, enabling plug-and-play installation and reliable electrical signalling for short-distance links.
Suitable for
Short-reach 100 Gigabit Ethernet connections inside racks and between adjacent racks
Data center Top-of-Rack and spine-leaf interconnects
Connections between QSFP28-capable switches, routers and servers
Environments where low latency and low power consumption are required
Key specifications
Connector type: QSFP28 to QSFP28 (copper DAC)
Length: 3 meters
Transmission rate: supports 100GbE
Cable type: passive twinax copper assembly
Typical usage: short-reach electrical interconnects within racks and data halls
How to use
Install the DAC cable by inserting each QSFP28 plug into the corresponding QSFP28 port on your network devices until the latch engages. Ensure both ends are seated securely and that devices are powered and configured for 100GbE operation. No additional modules, power supplies, or fibre patching are required. Use proper handling to avoid sharp bends and excessive pulling; route the cable to prevent mechanical stress and maintain signal integrity.
Usage recommendations
Verify compatibility with your equipment vendor’s QSFP28 port guidelines before deployment. Maintain bend radius and avoid kinking; keep the cable away from sources of electromagnetic interference for optimal performance in high-density racks.

## FAQ

### How much does the CBO QSFP28-DAC-3M 3m DAC cable 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 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/4466845/59859856_large.webp