# CBO DAC cable QFX-QSFP28-DAC-1M-BL 1 m, QSFP28 direct-attach copper, 100 Gbit/s

**URL:** https://aio.lv/en/product--blueoptics-qfx-qsfp28-dac-1m-bl--4466221
**Data updated:** 2026-02-25 16:31 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QFX-QSFP28-DAC-1M-BL
**EAN:** 4063232642345
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 104.49 €
**Prices and availability valid until:** 2026-08-10 23:59
**Price without VAT (21%):** 86.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qfx-qsfp28-dac-1m-bl--4466221

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.08.2026 | free |
| Pickup points | 13.08.2026 | 1.89 EUR |
| Courier delivery to door | 13.08.2026 | 4.99 EUR |

## Summary description

Passive CBO DAC cable QFX-QSFP28-DAC-1M-BL is a 1-meter QSFP28 direct-attach copper assembly delivering 100 Gbit/s connectivity. Designed for short-reach interconnects between QSFP28 ports in switches, routers and servers. Provides low-latency, energy-efficient connection without optics, suitable for data center top-of-rack links and high-speed equipment interconnects.

## Long description

Passive CBO DAC cable QFX-QSFP28-DAC-1M-BL is a 1-meter QSFP28 direct-attach copper assembly engineered to provide 100 Gbit/s connectivity for short-reach links. The cable is intended for direct connection between QSFP28 ports in switches, routers and servers, offering a low-latency, energy-efficient alternative to optics for data centre top-of-rack and equipment interconnects.
Advantages
The direct-attach copper design delivers stable 100 Gbit/s performance with minimal signal conversion, reducing latency compared with optical transceivers. Being a passive cable, it consumes no additional power for signal amplification, contributing to lower operational energy use. The 1 m length supports dense rack and top-of-rack deployments where short, reliable interconnects are required. The QSFP28 connector form factor ensures compatibility with a wide range of high-speed network devices that accept QSFP28 direct connections.
Suitable for
 Short-reach interconnects between QSFP28 ports in switches and routers
 Server-to-switch connections in top-of-rack configurations
 High-speed device interconnects in data centres and server rooms
Key specifications
 Connector type: QSFP28 to QSFP28 direct-attach copper
 Data rate: 100 Gbit/s
 Cable type: Passive copper twinax assembly
 Length: 1 m
 Intended reach: Short-reach / intra-rack links
How to use
Ensure both devices support QSFP28 direct-attach copper connections and are powered down or follow hot-plug procedures recommended by the device manufacturer. Align and insert each QSFP28 connector into the corresponding port until the latch engages. Verify link status and negotiated speed through the device management interface. To remove, release the connector latch and withdraw the module carefully to avoid bending or stressing the cable assembly.
Usage recommendations
Avoid routing the cable through sharp bends or tight cable management loops and maintain bend radii recommended for copper twinax assemblies. Use the 1 m passive QSFP28 DAC for short intra-rack links where a low-latency, energy-efficient connection is required and opt for optical modules or active cables for longer distances or equipment that does not accept passive QSFP28 direct attachments.

## FAQ

### How much does the CBO QSFP28 DAC cable QFX-QSFP28-DAC-1M-BL cost, and is it available for purchase?

The price is 104.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 246 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 10.08.2026 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/4466221/59859326_large.webp