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

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-5m-ao-bl--4466872
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-5M-AO-BL
**EAN:** 4063232102290
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 212.49 €
**Prices and availability valid until:** 2026-08-04 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-ao-bl--4466872

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.89 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

Passive direct attach copper (DAC) cable CBO QSFP28-DAC-5M is a 5 meter twinax assembly designed for QSFP28 ports. It provides a cost-effective, low-latency electrical connection for short-reach 100Gbps links between switches, routers or NICs. Suitable for data center top-of-rack, server interconnects and high-speed aggregation with plug-and-play installation.

## Long description

Passive direct attach copper (DAC) cable CBO QSFP28-DAC-5M is a 5 metre twinax assembly engineered for QSFP28 ports to support short-reach 100Gbps electrical links. Designed for data centre environments, this BlueOptics cable delivers a low-latency, high-bandwidth connection between switches, routers and network interface cards without the need for transceivers. The cable is intended for plug-and-play installation and offers a cost-effective solution for top-of-rack and server interconnects where distances up to 5 metres are required.
Advantages
The passive twinax construction provides reliable signal integrity and minimal latency for 100Gbps links while eliminating the power and cost overhead of optical transceivers. The fixed 5 metre length simplifies cable management and reduces inventory complexity. Compatible with QSFP28 ports, the assembly supports high-density deployments and is suitable for short-distance aggregation and switch-to-switch connections. Its robust connectors and twisted pair geometry are optimised for stable electrical performance in rack environments.
Suitable for
Short-reach 100Gbps links between switches and routers
Top-of-rack (ToR) server interconnects in data centres
High-speed aggregation and spine-leaf fabrics
Direct QSFP28 port connections where optical transceivers are not required
Key specifications
Interface type: QSFP28 to QSFP28 electrical twinax cable
Length: 5 metres
Data rate: 100 Gbps class short-reach electrical link
Cable type: Passive twinax copper assembly
Latency: Low-latency design suitable for high-performance switching
Installation: Plug-and-play, no separate transceivers required
Usage environment: Designed for rack and data centre deployments
How to use
Install the CBO QSFP28-DAC-5M by inserting each QSFP28 connector into the corresponding QSFP28 port on the network devices until the connector latches. Ensure devices are powered down or follow hot-plug guidelines of your hardware when connecting or disconnecting. No additional configuration or transceivers are required; once connected, devices should detect the link and negotiate the appropriate 100Gbps electrical connection. Route the cable to avoid sharp bends and maintain recommended bend radius for twinax assemblies.
Usage recommendations
For best performance, use this passive DAC cable for links up to 5 metres within the same rack or between adjacent racks. Confirm QSFP28 port compatibility with your switching and server hardware and follow vendor guidelines for hot-plugging. Avoid excessive bending, tension or exposure to sources of electromagnetic interference to maintain stable signal integrity.

## 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 — 356 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 03.08.2026 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/4466872/59855555_large.webp