# Direct Attach Copper (DAC) Cable CBO QSFP28-DAC-1M 1 m Passive QSFP28 to QSFP28

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-1m-le-bl--4466785
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-1M-LE-BL
**EAN:** 4063232101071
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 105.49 €
**Prices and availability valid until:** 2026-08-01 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-1m-le-bl--4466785

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.07.2026 | free |
| Pickup points | 04.08.2026 | 1.89 EUR |
| Courier delivery to door | 04.08.2026 | 4.99 EUR |

## Summary description

CBO QSFP28-DAC-1M is a 1 meter passive Direct Attach Copper (DAC) cable with QSFP28 connectors on both ends. Designed for short-reach 100GbE interconnects between switches, routers and servers, it provides low-latency, energy-efficient connectivity without transceivers. Suited for data center top-of-rack and server-to-switch links.

## Long description

BlueOptics Direct Attach Copper (DAC) Cable CBO QSFP28-DAC-1M is a 1 meter passive copper connection with QSFP28 connectors on both ends, engineered for short-reach 100GbE links. The cable provides a direct electrical interface between QSFP28 ports on switches, routers and servers without the need for separate optical transceivers, enabling compact, low-latency interconnects ideal for dense data centre top-of-rack and server-to-switch deployments.
Advantages
This passive QSFP28 to QSFP28 DAC offers predictable signal integrity and low latency for 100 Gigabit Ethernet applications while reducing power consumption compared with active or optical solutions. The integrated copper assembly simplifies installation and maintenance by eliminating separate modules and fibre patching. Its 1 m length minimizes signal attenuation for short-reach links and supports stable bandwidth for demanding network traffic.
Suitable for
Short-reach 100GbE links between switches in top-of-rack configurations
Server-to-switch interconnects inside racks and adjacent rack rows
High-density data centre cabling where power efficiency and low latency are required
Temporary or permanent interconnects in lab and test environments
Key specifications
Connector type: QSFP28 to QSFP28
Length: 1 metre
Medium: Passive direct attach copper
Data rate support: 100 Gigabit Ethernet
Form factor: Fixed twinax cable assembly suitable for QSFP28 ports
Typical application: Short-reach intra-rack and adjacent-rack connectivity
How to use
Insert each QSFP28 plug into a compatible QSFP28 port on the network devices until the connector latch engages. Confirm link status on both devices and verify negotiated speed is 100GbE. For best performance, use the cable for connections that do not exceed the 1 m length and ensure ports are clean and free of debris before installation. Remove the cable by depressing the connector latch and pulling straight out to avoid damaging the port.
Usage recommendations
Use this passive DAC for short-distance, high-throughput links inside racks or between adjacent racks. Avoid sharp bends and excessive tension on the cable; maintain bend radius recommended by the manufacturer and keep the cable away from heat sources and strong electromagnetic interference. Verify compatibility with device firmware and port specifications prior to deployment.

## FAQ

### How much does the CBO QSFP28-DAC-1M 1 m Passive QSFP28 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 — 247 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 30.07.2026 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/4466785/59856721_large.webp