# CBO QSFP28 Direct Attach Copper (DAC) cable 0.5 m for QSFP28 ports

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-05m-ib-bl--4466747
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-0.5M-IB-BL
**EAN:** 4063232100616
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 105.49 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 87.18 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp28-dac-05m-ib-bl--4466747

## 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

CBO QSFP28-DAC-0.5M-IB-BL is a 0.5 m Direct Attach Copper (DAC) cable designed for QSFP28 ports. It provides a short-reach, low-latency connection between compatible QSFP28 network devices for 100GbE links. Suitable for top-of-rack and switch-to-switch connections where a fixed, cost-effective copper link is required, offering plug-and-play installation and no additional optics.

## Long description

CBO QSFP28 Direct Attach Copper (DAC) cable 0.5 m for QSFP28 ports provides a short, fixed copper connection for 100 Gigabit Ethernet links between compatible QSFP28 devices. The passive DAC design delivers low latency and deterministic performance without the need for separate optical transceivers, making it suitable for dense rack environments and short-reach interconnects such as top-of-rack and switch-to-switch links. The cable is plug-and-play and requires no additional configuration or power beyond the connected devices.
Advantages
This 0.5 m QSFP28 DAC cable offers a cost-effective and power-efficient alternative to optical modules for short-distance connections. Its direct-attach copper construction ensures low latency and predictable signal integrity for high-throughput environments. The compact length reduces cable management complexity in congested rack installations and supports hot-pluggable operation for quick replacement or reconfiguration.
Suitable for
Top-of-rack interconnections in data centers
Switch-to-switch 100GbE links within the same rack or adjacent racks
High-performance computing clusters requiring low-latency links
Short-reach aggregation and spine-leaf networking segments
Key specifications
Connector type: QSFP28 to QSFP28 compatible
Cable type: Direct Attach Copper (DAC), passive
Length: 0.5 m
Supported data rate: 100 Gigabit Ethernet
Latency: minimal, suitable for low-latency applications
Installation: hot-pluggable, plug-and-play
How to use
Install the cable by inserting each QSFP28 connector firmly into the QSFP28 ports of the devices to be linked. Ensure devices are powered and configured for 100GbE operation; the DAC cable itself requires no additional setup or external power. For best results, avoid sharp bends and mechanical stress at the connector ends and route the cable to minimize strain and interference from nearby power sources.
Usage recommendations
Use this 0.5 m QSFP28 DAC cable for short-distance links where a fixed copper connection is acceptable. Choose passive DACs for reduced cost and power use in dense rack environments; verify device compatibility with QSFP28 passive copper assemblies before deployment.

## FAQ

### How much does the CBO QSFP28 DAC cable 0.5 m cost, and is it available for purchase?

The price is 105.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 228 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/4466747/59859837_large.webp