# Direct Attach Copper (DAC) Cable CBO QSFP28-DAC-5M 5 m, QSFP28 to QSFP28

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-5m-mt-bl--4467138
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-5M-MT-BL
**EAN:** 4063232102481
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 212.49 €
**Prices and availability valid until:** 2026-08-21 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-mt-bl--4467138

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 19.08.2026 | free |
| Pickup points | 24.08.2026 | 1.79 EUR |
| Courier delivery to door | 24.08.2026 | 4.99 EUR |

## Summary description

CBO QSFP28-DAC-5M is a 5-metre direct attach copper (DAC) cable with QSFP28 connectors at both ends, compatible with Mikrotik equipment. Designed for short-range high-speed interconnects between QSFP28 ports, it provides a cost-effective, low-latency link for switches, routers and servers in racks or adjacent cabinets.

## Long description

The BlueOptics Direct Attach Copper (DAC) Cable CBO QSFP28-DAC-5M is a 5-metre copper twinax assembly with QSFP28 connectors on both ends, designed for short-range high-speed interconnects. This cable is compatible with Mikrotik equipment and intended for linking QSFP28 ports on switches, routers and servers within the same rack or in adjacent cabinets. The direct-attach design provides a fixed, low-latency electrical connection without the need for separate transceivers, making it a practical choice for dense data centre and enterprise networking environments.
Advantages
The DAC cable delivers a cost-effective alternative to optical transceivers and fiber for short distances, offering low latency and high signal integrity over a 5 m reach. With QSFP28 connectors at both ends the assembly simplifies port-to-port connections between compatible QSFP28 interfaces and reduces power consumption compared to active optical or transceiver-based links. The cable's pre-terminated twinax construction ensures straightforward installation and predictable performance in rack-to-rack or within-rack deployments.
Suitable for
Interconnecting QSFP28 ports on switches and routers within the same rack
Connecting servers with QSFP28 network interfaces to top-of-rack switches
Short-reach links between adjacent server or network cabinets
High-density data centre environments requiring low-latency connections
Key specifications
Length: 5 metres
Connector type: QSFP28 to QSFP28
Media: Direct attach copper (twinax)
Application: Short-range, high-speed interconnects (within rack / adjacent racks)
Compatibility: Designed for use with equipment that supports QSFP28 electrical DAC connections, including Mikrotik
How to use
Install the cable by inserting each QSFP28 connector into the corresponding QSFP28 port until the latch engages. Ensure both connected devices are powered down or that hot-plugging is supported by the equipment to avoid link negotiation issues, then power on and verify link status through device LEDs or management interfaces. For optimal signal integrity, route the cable without sharp bends and avoid kinking or excessive twisting. Use appropriate cable management to maintain clear airflow and serviceability within the rack.
Usage recommendations
Use the 5 m DAC cable for short, direct connections where cost, power efficiency and low latency are priorities. Verify QSFP28 DAC support and firmware compatibility on both endpoints before deployment, and keep the cable away from high electromagnetic interference sources. Regularly inspect connectors for debris or damage and replace the cable if physical wear is observed.

## FAQ

### How much does the CBO QSFP28-DAC-5M QSFP28 DAC Cable 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 — 351 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 19.08.2026 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/4467138/59859864_large.webp