# DAC cable CBO QSFP28-DAC-5M 5 m passive copper for QSFP28 ports

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-5m-pa-bl--4467142
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-5M-PA-BL
**EAN:** 4063232102528
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 212.49 €
**Prices and availability valid until:** 2026-08-26 23:59
**Price without VAT (21%):** 175.61 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp28-dac-5m-pa-bl--4467142

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 25.08.2026 | free |
| Pickup points | 28.08.2026 | 1.79 EUR |
| Courier delivery to door | 28.08.2026 | 4.99 EUR |

## Summary description

CBO DAC cable QSFP28-DAC-5M is a 5-meter passive copper direct-attach cable designed for QSFP28 ports. It provides a fixed, low-latency connection between compatible network devices, suitable for short-distance links in data centers, switch-to-switch or switch-to-server connections. The passive design requires no external power or optics and simplifies cabling while offering reliable high-speed connectivity.

## Long description

BlueOptics DAC cable QSFP28-DAC-5M is a 5‑metre passive copper direct-attach cable engineered for QSFP28 ports. It provides a fixed electrical connection for 100GbE links with minimal latency and deterministic signal behavior. The passive design eliminates the need for optical transceivers or external power, simplifying rack-to-rack and switch-to-server cabling in data centre and enterprise environments while maintaining high-speed connectivity over short distances.
Advantages
The cable delivers stable, low-latency performance suitable for high-throughput fabrics and latency-sensitive applications. As a passive copper assembly, it reduces power consumption and component count compared with active cables or separate optics plus DAC assemblies. Its single-piece construction simplifies installation and inventory management, and compatibility with QSFP28 ports ensures straightforward interoperability with devices that support QSFP28 direct-attach connections.
Suitable for
 Short-reach 100GbE interconnects in data centres
 Switch-to-switch and switch-to-server links
 High-density top-of-rack cabling where low latency is required
 Environments preferring passive solutions to reduce power and complexity
Key specifications
 Connector type: QSFP28 to QSFP28 compatible direct-attach
 Length: 5 metres
 Cable medium: Passive copper twinax
 Data rate support: Designed for 100 Gigabit Ethernet applications
 Latency: Low fixed-latency electrical connection suitable for latency-sensitive traffic
 Installation: Hot-pluggable, single-assembly connection
How to use
Ensure both devices have QSFP28 ports that support passive direct-attach copper cables. With devices powered and ports accessible, align each QSFP28 connector and insert fully until the latch engages. Confirm link status through device LEDs or management interfaces and monitor for expected data rates. To remove, press the connector latch and pull straight out, avoiding excessive bending of the cable near the connector. Follow equipment vendor guidelines for ESD protection and handling of copper assemblies.
Usage recommendations
Use this 5 m passive DAC cable for short, high-bandwidth connections inside racks or between adjacent racks. Avoid routing the cable near high-power or high-interference sources and maintain bend radii recommended by the equipment vendor. For longer runs or when active signal conditioning is required, consider optical transceivers or active copper solutions.

## FAQ

### How much does the DAC cable CBO QSFP28-DAC-5M 5 m cost, and is it available for purchase?

The price is 212.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 351 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 25.08.2026 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/4467142/59879632_large.webp