# Direct Attach Cable BlueOptics QSFP28-DAC-3M 100GBASE-CR4, QSFP28, 3 m

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-3m-bl--10672935
**Data updated:** 2026-02-24 11:01 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-3M-BL
**EAN:** 4063232315829
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 119.49 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 98.75 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp28-dac-3m-bl--10672935

## 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

BlueOptics QSFP28-DAC-3M is a 3-meter Direct Attach Copper (DAC) cable with QSFP28 connectors supporting 100GBASE-CR4. Designed for short-reach 100 Gbps links between switches, routers or network interface cards, it provides a fixed, low-latency copper connection without optical transceivers. Suitable for data center uplinks, aggregation and top-of-rack deployments.

## Long description

BlueOptics QSFP28-DAC-3M is a 3-meter Direct Attach Copper (DAC) cable with QSFP28 connectors that supports 100GBASE-CR4 for short-reach 100 Gbps links. It provides a passive copper connection intended for direct device-to-device connections such as switch-to-switch, switch-to-router or network interface card (NIC) links in data centre environments. The design removes the need for separate optical transceivers and fiber patching for short-distance uplinks and top-of-rack interconnects.
Advantages
The DAC cable offers low latency and predictable performance with minimal power consumption compared to optical modules. As a fixed copper assembly with QSFP28 interfaces, it simplifies installation and reduces component count in dense rack deployments. Its 3 m length provides flexibility for common rack and cabinet layouts while maintaining signal integrity for 100GBASE-CR4 connections.
Suitable for
 Short-reach 100 Gbps links between switches
 Top-of-rack and spine/leaf interconnects in data centres
 Direct connections to network interface cards (NICs) in servers
 Aggregation and uplink ports where fibre transceivers are not required
Key specifications
 Connector type: QSFP28 to QSFP28
 Cable type: Direct Attach Copper (passive DAC)
 Supported standard: 100GBASE-CR4
 Nominal length: 3 metres
 Data rate: 100 Gbps
 Typical use: short-reach rack-level interconnects
How to use
Install the cable by inserting each QSFP28 connector into the corresponding QSFP28 port on the devices to be connected. Ensure ports are powered down or follow hot-plug guidelines of the equipment manufacturer if available. Verify link status through device management interfaces and confirm 100G operation. Route the cable to avoid sharp bends and mechanical stress; secure within the rack to prevent strain on connectors.
Usage recommendations
For reliable operation, use this DAC cable for short-distance, high-bandwidth links within the same rack or adjacent racks. Avoid exceeding the specified bend radius and keep the cable away from sources of electromagnetic interference. Check compatibility with equipment vendor port firmware or compatibility lists when deploying in heterogeneous environments.

## FAQ

### How much does the BlueOptics QSFP28-DAC-3M 100G DAC 3m cost, and is it available for purchase?

The price is 119.49 € (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