# DAC cable CBO QSFP28-DAC-1M 1m passive copper 100G for QSFP28 ports

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-1m-sw-bl--4466800
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-1M-SW-BL
**EAN:** 4063232101194
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 105.49 €
**Prices and availability valid until:** 2026-08-05 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-sw-bl--4466800

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 04.08.2026 | free |
| Pickup points | 07.08.2026 | 1.89 EUR |
| Courier delivery to door | 07.08.2026 | 4.99 EUR |

## Summary description

Passive copper Direct Attach Cable (DAC) CBO QSFP28-DAC-1M is a 1 meter 100G twinax cable designed for QSFP28 ports. It provides low-latency, short-reach connectivity between switches, routers or network adapters without transceivers. Ideal for rack-to-rack or in-rack connections where cost-effective, energy-efficient 100G links are required.

## Long description

Passive copper Direct Attach Cable (DAC) CBO QSFP28-DAC-1M is a 1 metre twinax cable engineered for 100G QSFP28 ports. The cable provides a direct electrical connection between compatible QSFP28 ports on switches, routers or network adapters, eliminating the need for separate optical transceivers for short-reach links. Designed for rack-to-rack and in-rack interconnects, it offers low latency and energy-efficient operation for high-density data centre and enterprise network environments.
Advantages
The passive copper construction delivers reliable 100G connectivity with minimal signal processing and low power consumption compared with active or optical solutions. Its fixed 1 metre length simplifies cabling in dense rack environments and reduces clutter. The twinax design provides low latency and consistent performance for short-reach links, while plug-and-play compatibility with standard QSFP28 ports allows fast deployment and straightforward maintenance.
Suitable for
Short-reach 100G connections between adjacent racks or within the same rack
Interconnects between switches, routers and network interface cards with QSFP28 ports
High-density data centre environments requiring energy-efficient links
Environments where low latency and predictable performance are required
Key specifications
Connector type: QSFP28 to QSFP28 compatible twinax
Length: 1 metre
Cable type: Passive copper twinax
Nominal data rate: 100 Gigabit per second
Typical use: Short-reach direct attach between QSFP28 ports
Latency: low, suitable for latency-sensitive applications
Power: passive operation (no additional power required in the cable)
How to use
Ensure both devices have QSFP28 ports that support passive DAC connections. With devices powered down or following hot-plug guidance from your hardware vendor, insert each QSFP28 end of the twinax cable into the corresponding port until the latch engages. Verify link status in the device management interface and confirm the negotiated 100G link. For removal, disengage the latch before gently withdrawing the connector. Follow any vendor-specific compatibility lists and firmware recommendations to ensure full functionality.
Usage recommendations
Use this 1 metre passive DAC for short-distance, high-bandwidth links where cost-effectiveness and low power consumption are priorities. Avoid routing the cable near high-heat sources and maintain proper bend radius to preserve signal integrity. Check switch or adapter documentation for supported passive copper cables and firmware versions to ensure interoperability.

## FAQ

### How much does the CBO QSFP28-DAC-1M 1m Passive 100G 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 04.08.2026 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/4466800/59854375_large.webp