# DAC cable CBO QSFP28-DAC-3M 3m passive copper 100G

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-3m-ao-bl--4466838
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-3M-AO-BL
**EAN:** 4063232101811
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 134.49 €
**Prices and availability valid until:** 2026-08-05 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-ao-bl--4466838

## 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

CBO QSFP28-DAC-3M is a 3-meter passive copper DAC cable for 100G QSFP28 connections. Designed for short-reach high-speed interconnects between switches, routers and servers, it provides a fixed, low-latency 100 Gigabit link without transceivers. Suitable for data center top-of-rack and rack-to-rack cabling where a cost-effective, energy-efficient 100G connection is required.

## Long description

CBO QSFP28-DAC-3M is a 3-meter passive copper direct attach cable (DAC) engineered for 100G QSFP28 ports. It establishes a fixed 100 Gigabit link between compatible switches, routers and servers without the need for separate optical transceivers, making it suitable for short-reach, high-bandwidth interconnects in data center environments. The cable is intended for top-of-rack and rack-to-rack connections where a low-latency, power-efficient, and cost-effective 100G connection is required.
Advantages
The passive copper design provides low latency and minimal power consumption compared with active or optical solutions. A pre-terminated QSFP28 form factor ensures straightforward installation and reliable signal integrity over short distances. The cable reduces overall system cost by eliminating separate transceivers while maintaining full 100G line-rate performance for supported ports and equipment.
Suitable for
 Top-of-rack 100G switch to server connections
 Rack-to-rack interconnects within the same data hall
 High-density switch stacking and spine-leaf fabrics
 Short-reach aggregation links in data center networks
Key specifications
 Connector type: QSFP28 to QSFP28
 Length: 3 meters (passive copper)
 Maximum data rate: 100 Gbps
 Signal type: Passive copper twinax
 Typical use-case range: short-reach intra-rack and adjacent-rack cabling
 Compatibility: QSFP28 ports supporting passive DACs (check device documentation for compatibility)
How to use
Power down or follow hot-plug guidelines of your equipment before insertion if recommended by the vendor. Align each QSFP28 plug with the port and insert until the latch engages; ensure both ends are fully seated. Monitor the device link and interface statistics to confirm a 100G link is negotiated. If connectivity issues arise, verify port settings, check for port compatibility with passive DACs and inspect the cable and connectors for mechanical damage.
Usage recommendations
Use this 3m passive QSFP28 DAC for short-distance 100G links inside racks or between adjacent racks. Avoid routing the cable near high-heat or high-electromagnetic-interference sources, and follow bend-radius and strain-relief practices specified by the equipment vendor to preserve signal integrity and mechanical life.

## FAQ

### How much does the DAC cable CBO QSFP28-DAC-3M 3m 100G 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 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/4466838/59855549_large.webp