# DAC cable CBO QSFP28-DAC-2M 2 m length compatible with Cumulus — QSFP28 direct attach cable

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-2m-cn-bl--4466808
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-2M-CN-BL
**EAN:** 4063232101439
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 110.99 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 91.73 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp28-dac-2m-cn-bl--4466808

## 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

Direct Attach Copper (DAC) cable CBO QSFP28-DAC-2M is a 2 m QSFP28 compatible cable designed for short-range, high-speed connections between network devices. Compatible with Cumulus, it supports QSFP28 interfaces for aggregation, switch-to-switch, and server-to-switch links. Provides a cost-effective, low-latency solution for data center interconnects and rack-level connections.

## Long description

Direct Attach Copper (DAC) cable CBO QSFP28-DAC-2M is a 2 m QSFP28 compatible cable designed for short-range, high-speed connections between network devices. Compatible with Cumulus, this QSFP28 direct attach cable provides a low-latency, energy-efficient connection for rack-level links, switch-to-switch aggregation and server-to-switch uplinks. The cable supports native QSFP28 interfaces and is intended for use in data centre topologies where reliable 100 Gigabit connectivity is required over a short distance.
Advantages
This QSFP28 direct attach cable offers reliable high-bandwidth performance with minimal signal latency and reduced power consumption compared to optical transceivers. The fixed copper assembly and 2 m length simplify cabling within racks and adjacent racks, reducing the need for additional transceivers and fibre patching. Compatibility with devices that support QSFP28 and Cumulus ensures straightforward interoperability in many modern network environments.
Suitable for
 100 Gigabit switch-to-switch connections within the same rack or adjacent racks
 Server-to-switch uplinks requiring low latency and high throughput
 Top-of-rack and aggregation layer links in data centres
 Short-range interconnects where cost-effective copper connectivity is preferred
Key specifications
 Connector type: QSFP28 direct attach (fixed copper)
 Cable length: 2 m
 Data rate: supports 100 Gigabit Ethernet over a single QSFP28 link
 Cable medium: copper twinax assembly for short-range links
 Typical use: rack-level and adjacent-rack interconnects with low latency
 Compatibility: designed for equipment supporting QSFP28 interfaces and Cumulus environments
How to use
Insert each end of the QSFP28-DAC-2M cable into the QSFP28 ports of the two devices to be connected, ensuring the latch engages securely. Confirm that both network devices are configured for the same link speed and duplex settings if manual configuration is required. Monitor link status and perform any necessary interface enablement on the switches or servers. For best results, route the cable to avoid sharp bends and do not exceed the recommended bend radius for twinax assemblies.
Usage recommendations
Use this 2 m QSFP28 direct attach cable for short-range, high-performance connections inside racks or between adjacent racks. Avoid installation in areas where cable movement or frequent reconfiguration could stress the fixed copper assembly; if longer or more flexible runs are needed, consider active optical or fibre solutions. Follow equipment vendor guidance for QSFP28 port handling and ESD precautions.

## FAQ

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

The price is 110.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 270 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/4466808/59856725_large.webp