# DAC cable CBO QSFP28-DAC-0.5M 0.5m passive copper QSFP28 to QSFP28

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-05m-fr-bl--4466744
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-0.5M-FR-BL
**EAN:** 4063232100562
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 105.49 €
**Prices and availability valid until:** 2026-07-29 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-fr-bl--4466744

## 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

Passive copper DAC cable CBO QSFP28-DAC-0.5M is a 0.5 m direct-attach cable with QSFP28 connectors at both ends for short-reach 100GbE or compatible high-speed interconnects. It provides low-latency, low-power connectivity between switches, routers or servers without transceivers. Suitable for data center top-of-rack and short in-rack connections.

## Long description

Passive copper DAC cable CBO QSFP28-DAC-0.5M is a 0.5 m direct-attach cable with QSFP28 connectors at both ends, designed for short-reach 100GbE and compatible high-speed interconnects. The cable provides a compact, low-latency and low-power physical link between network devices without the need for optical transceivers. It is intended for short in-rack and top-of-rack connections in modern data center environments where reliable, cost-effective 100 Gbps links are required.
Advantages
This passive DAC cable delivers predictable latency and consistent electrical performance for short-distance 100 GbE links, while eliminating the additional power consumption and cost of optical modules. Its fixed length and integrated QSFP28 connectors simplify installation and reduce component count. The robust copper construction ensures stable signal integrity and mechanical durability suitable for dense rack environments.
Suitable for
 Short-reach 100GbE connections between switches
 Server-to-top-of-rack and in-rack high-speed links
 Low-latency interconnects in data centers
 Environments where power efficiency and minimal heat are priorities
Key specifications
 Connector type: QSFP28 to QSFP28
 Length: 0.5 m
 Transmission: passive copper direct-attach cable
 Data rate support: 100 Gbps and compatible high-speed protocols
 Use case: short-reach, in-rack and top-of-rack interconnects
How to use
Install the cable by inserting each QSFP28 connector into the corresponding QSFP28 port on your switches, routers or server NICs until the latch engages. Ensure both ends are fully seated and that cable routing avoids sharp bends and excessive strain. No additional configuration is required at the physical layer; verify link status via the device management interface and monitor for proper link speed and health.
Usage recommendations
For reliable performance, use this DAC cable for connections shorter than 1 m and within the same rack or adjacent racks. Maintain bend radii above manufacturer-recommended limits, avoid routing near high-heat sources, and verify compatibility with your equipment's QSFP28 port specifications before deployment.

## FAQ

### How much does the CBO QSFP28-DAC-0.5M 0.5m passive DAC cable 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/4466744/59854373_large.webp