# CBO DAC Cable QSFP28-DAC-3M 3m Passive Copper Direct Attach QSFP28 to QSFP28

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-3m-co-bl--4466844
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-3M-CO-BL
**EAN:** 4063232101866
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 134.49 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 111.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp28-dac-3m-co-bl--4466844

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 28.07.2026 | free |
| Pickup points | 31.07.2026 | 1.89 EUR |
| Courier delivery to door | 31.07.2026 | 4.99 EUR |

## Summary description

Passive copper Direct Attach Cable (DAC) by CBO, model QSFP28-DAC-3M, 3 meters length. Designed for QSFP28 ports to provide short-reach, low-latency 100GbE connections between switches, servers or network appliances. Plugs directly into QSFP28 transceivers, requires no external power or optics, offering cost-effective, energy-efficient links for data center and rack-to-rack interconnects.

## Long description

CBO DAC Cable QSFP28-DAC-3M is a 3 meter passive copper Direct Attach Cable designed for QSFP28 ports. It provides a short-reach, low-latency 100GbE connection between switches, servers or network appliances. The cable plugs directly into QSFP28 transceivers and requires no external power or optical modules, delivering a cost-effective and energy-efficient link for data center and rack-to-rack interconnects.
Advantages
The passive copper design offers low latency and predictable signal performance for short-distance connections. Being a direct attach solution, the cable eliminates the need for separate transceivers or powered optics, reducing both initial hardware cost and ongoing energy consumption. The fixed 3 m length simplifies cable management between adjacent racks or within server chassis and supports standard QSFP28 port form factors for compatibility with a wide range of networking equipment.
Suitable for
100 Gigabit Ethernet short-reach links between switches
Server-to-switch connections in data centers
Rack-to-rack interconnects within the same room or adjacent rows
Connecting network appliances and storage systems that support QSFP28
Key specifications
Interface: QSFP28 to QSFP28
Length: 3 meters
Media type: Passive copper direct attach
Supported data rate: 100 Gigabit Ethernet
Connector type: QSFP28 form factor
Typical application: Short-reach data center and rack interconnects
How to use
Insert each QSFP28 connector into the corresponding QSFP28 port on your switch, server or appliance until it seats securely. Ensure ports are compatible with passive DACs and that devices are powered and configured for 100GbE operation. No external power or additional optical modules are required. For removal, depress the connector latch (if present) and pull straight out to avoid stressing the cable or port.
Usage recommendations
Use the cable for short-distance interconnects up to 3 meters within the same rack or between adjacent racks. Avoid tight bends and maintain manufacturer-recommended bend radius to preserve signal integrity. Verify switch and server compatibility with passive QSFP28 Direct Attach Cables in device documentation before deployment.

## FAQ

### How much does the CBO QSFP28-DAC-3M 3m Passive DAC Cable cost, and is it available for purchase?

The price is 134.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 337 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 28.07.2026 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/4466844/59855550_large.webp