# CBO DAC Cable QSFP28-DAC-2M 2m Passive Copper Direct Attach

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-2m-le-bl--4466819
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-2M-LE-BL
**EAN:** 4063232101569
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 124.49 €
**Prices and availability valid until:** 2026-07-28 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-le-bl--4466819

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

Passive 2-meter CBO DAC cable with QSFP28 connectors for direct-attach copper links. Designed for short-range high-speed connections between compatible QSFP28 ports, it supports server, switch and storage interconnects without additional transceivers. Simple plug-and-play installation reduces latency and power consumption while providing reliable 100G connectivity in data center racks.

## Long description

The CBO DAC Cable QSFP28-DAC-2M 2m Passive Copper Direct Attach is a 2‑meter direct-attach copper cable with QSFP28 connectors designed for short‑range 100G links between compatible ports. Intended for use inside racks or between adjacent equipment, this passive DAC provides a low-latency, low-power alternative to optical transceivers for server, switch and storage interconnects. The cable offers plug‑and‑play connectivity and requires no separate transceiver modules or fiber patching, simplifying installation and maintenance.
Advantages
The passive copper construction reduces power consumption and heat compared with active modules and optical solutions. With QSFP28 connectors and a 2 m length, the cable enables reliable 100G links while minimizing signal conversion overhead and latency. Its direct-attach design eliminates the need for additional transceivers and fiber cabling, lowering material and operational complexity in rack environments.
Suitable for
 Short-reach 100G connections within the same rack or between adjacent racks
 Interconnecting servers, top-of-rack switches and storage arrays
 High-density data center setups where power and latency must be minimized
 Environments that require plug-and-play 100G links without optical transceivers
Key specifications
 Connector type: QSFP28 to QSFP28
 Cable type: Passive twinax copper
 Length: 2 meters
 Data rate: Supports 100 Gigabit Ethernet over QSFP28 interfaces
 Form factor: Direct attach cable, no separate transceivers required
 Typical applications: Rack-level server, switch and storage interconnects
How to use
Install the DAC by inserting each QSFP28 connector into the corresponding QSFP28 port on the devices to be connected, ensuring the latch engages securely. No additional configuration or transceiver modules are required; the cable should be recognized by compatible equipment and present a 100G link if ports support that speed. Avoid sharp bends and mechanical strain on the cable during installation and route it to minimize interference and airflow obstruction in the rack.
Usage recommendations
For optimal performance, use the 2 m passive DAC for short, direct connections within racks or between adjacent racks and verify port compatibility with QSFP28 passive DACs. Maintain bend radii recommended by the manufacturer, keep the cable away from high-power cabling to reduce potential interference, and ensure firm but not excessive insertion force when mating connectors.

## FAQ

### How much does the CBO QSFP28-DAC-2M 2m Passive DAC Cable 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 27.07.2026 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/4466819/59859853_large.webp