# DAC cable CBO QSFP28-DAC-2M 2 m Passive QSFP28 direct-attach copper

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-2m-pa-bl--4466826
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-2M-PA-BL
**EAN:** 4063232101637
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 124.49 €
**Prices and availability valid until:** 2026-08-04 23:59
**Price without VAT (21%):** 102.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp28-dac-2m-pa-bl--4466826

## 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

CBO QSFP28-DAC-2M 2 m Passive is a 2-meter direct-attach copper (DAC) cable with QSFP28 connectors for high-speed short-reach connections. Designed for use with compatible 100Gbps QSFP28 ports, it offers a cost-effective, low-latency link between switches, routers and servers in data centers and rack-to-rack deployments.

## Long description

The BlueOptics CBO QSFP28-DAC-2M 2 m Passive QSFP28 direct-attach copper is a 2‑metre direct-attach copper (DAC) cable with QSFP28 connectors, engineered for short-reach 100Gbps connections. It provides a low-latency, energy-efficient physical link between compatible QSFP28 ports in switches, routers and servers. The passive design eliminates active optics and power-hungry components, making it a cost-effective option for rack-to-rack and within-rack interconnects in data centres and high-density network environments.
Advantages
This passive QSFP28 DAC cable delivers reliable 100Gbps connectivity with minimal signal processing and reduced power consumption compared to active transceivers. Its fixed 2 m length simplifies rack planning and minimises excess cabling. The cable uses QSFP28 form-factor connectors to ensure mechanical compatibility with standard 100Gbps QSFP28 ports and supports low-latency transmission suitable for latency-sensitive applications. The all-copper construction provides straightforward installation and maintenance without the need for optical modules or additional power.
Suitable for
 Short-reach 100Gbps links between switches and routers within the same rack or adjacent racks
 Server-to-switch and server-to-router connections in data centre topologies
 High-density switch interconnects in spine-leaf architectures
 Environments where low latency and reduced power consumption are required
Key specifications
 Connector type: QSFP28 to QSFP28
 Data rate: 100 Gbps
 Length: 2 m (fixed)
 Cable type: Passive direct-attach copper (DAC)
 Typical use: Short-reach, within-rack and rack-to-rack interconnects
 Latency: Low-latency physical link suitable for time-sensitive traffic
How to use
Install the cable by inserting each QSFP28 connector into the corresponding QSFP28 port until it latches. Ensure both network devices are powered down or in a state recommended by the device manufacturer for hot-plugging; consult device documentation for hot-swap guidance. After seating the connectors, verify link status in the device management interface and confirm that the ports negotiate 100Gbps operation. Route the cable to avoid sharp bends and mechanical strain; secure it where necessary to maintain airflow and cabling order in the rack.
Usage recommendations
Use this 2 m passive QSFP28 DAC for short-distance interconnects within racks or between adjacent racks. Avoid operating in environments with excessive electromagnetic interference or where cable bending radius or mechanical stress may be exceeded. For longer distances or environments requiring electrical isolation, consider optical transceivers and fiber cabling.

## FAQ

### How much does the DAC cable CBO QSFP28-DAC-2M 2 m Passive cost, and is it available for purchase?

The price is 124.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 270 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/4466826/59858118_large.webp