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

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-3m-sw-bl--4466869
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-3M-SW-BL
**EAN:** 4063232102092
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 134.49 €
**Prices and availability valid until:** 2026-08-05 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-sw-bl--4466869

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.89 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

Passive copper DAC cable CBO QSFP28-DAC-3M is a 3-meter direct-attach cable with QSFP28 connectors on both ends for high-speed 100Gbps connections. Designed for short-reach interconnects between switches, routers and servers, it provides low-latency, low-power connectivity without transceivers. Ideal for data center top-of-rack and switch-to-switch links.

## Long description

Passive copper DAC cable CBO QSFP28-DAC-3M is a 3-meter direct-attach cable with QSFP28 connectors on both ends, designed for 100Gbps links in short-reach environments. The cable eliminates the need for separate optical transceivers by integrating QSFP28 plugs, delivering a compact, low-power connection between compatible network devices. It is intended for use in dense data center racks and switch-to-switch interconnects where predictable latency and cost-efficiency are priorities.
Advantages
The DAC cable offers low latency and reduced power consumption compared with optical links that require transceivers. Its passive copper construction provides stable signal integrity over short distances and simplifies installation by using plug-and-play QSFP28 connectors. The fixed 3 m length helps maintain predictable channel performance and reduces inventory complexity for standard short-reach links.
Suitable for
Top-of-rack connections between switches and aggregation devices
Switch-to-switch links within the same rack or adjacent racks
Server to switch connections in high-density deployments
Short-reach 100Gbps interconnects in data centers and network closets
Key specifications
Connector type: QSFP28 on both ends
Cable type: Passive copper direct-attach cable
Nominal data rate: 100 Gbps
Length: 3 meters
Typical use case: Short-reach interconnects in racks and adjacent racks
Compatibility: Designed for devices with QSFP28 ports
How to use
Install the DAC cable by aligning each QSFP28 connector with the corresponding port on the network devices and fully inserting until the latch engages. No transceivers or additional configuration are required; the link should be recognized by equipment that supports passive QSFP28 DACs. For reliable operation, ensure both endpoints support QSFP28 passive copper connections and verify link status through the device management interface after insertion.
Usage recommendations
For best performance, use the cable for connections up to 3 m within the same rack or adjacent racks, avoid tight bends and excessive strain on the cable, and keep QSFP28 connectors clean and protected when not in use. Confirm device compatibility and firmware support for passive DACs to ensure proper link negotiation and power management.

## FAQ

### How much does the DAC cable CBO QSFP28-DAC-3M 3 m 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 03.08.2026 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/4466869/59858142_large.webp