# DAC cable CBO QSFP28-DAC-2M 2m passive copper QSFP28 to QSFP28

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-2m-co-bl--4466809
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-2M-CO-BL
**EAN:** 4063232101422
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 124.49 €
**Prices and availability valid until:** 2026-07-27 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-co-bl--4466809

## 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

CBO QSFP28-DAC-2M is a 2 meter passive copper DAC cable designed for direct QSFP28-to-QSFP28 connections. It provides a cost-effective, low-latency link for switches, routers and servers that support QSFP28 ports. Suitable for short-reach interconnects in data centers and network racks where passive copper cabling is acceptable.

## Long description

The BlueOptics DAC cable CBO QSFP28-DAC-2M is a 2 metre passive copper direct attach cable that connects two QSFP28 ports for short-reach interconnects. Designed for use in data centre racks and network equipment, this QSFP28-to-QSFP28 cable supports 100 Gigabit Ethernet links without active signal conversion. The passive construction provides low latency and predictable electrical performance for QSFP28-capable switches, routers and servers where a short, cost-effective copper connection is suitable.
Advantages
This passive QSFP28 DAC cable delivers a compact, energy-efficient link with minimal insertion loss and low propagation delay. The fixed 2 m length simplifies cable management in dense rack environments and eliminates the need for transceivers, reducing both power consumption and total hardware cost. Compatibility with standard QSFP28 ports ensures straightforward installation and reliable operation for short-distance connections.
Suitable for
Short-reach interconnects between QSFP28 ports in data centre racks
Direct connections between switches, routers and servers supporting QSFP28
Top-of-rack and end-of-row patching where passive copper is acceptable
High-density deployments requiring compact, low-latency cabling
Key specifications
Connector type: QSFP28 to QSFP28
Cable type: Passive twinax copper
Nominal length: 2 metres
Supported data rate: 100 Gbps (QSFP28)
Form factor: Direct attach cable (DAC)
Typical use: Short-reach intra-rack and adjacent-rack links
How to use
Plug the QSFP28 connectors into the corresponding QSFP28 ports on each device until the latch engages. Ensure devices are powered down or that hot‑plugging is supported by your equipment before insertion or removal to prevent port damage. Verify link status on connected devices and confirm negotiation to the expected 100 Gbps mode. For best signal integrity, avoid sharp bends and keep the cable routed to minimise stress on the connectors.
Usage recommendations
Use this 2 m passive QSFP28 DAC for intra-rack and short adjacent-rack links where a low-cost, low-latency copper connection is acceptable; for longer distances or when optical isolation is required, choose active cables or optical transceivers and fibre cabling instead.

## FAQ

### How much does the CBO QSFP28-DAC-2M 2m passive QSFP28 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/4466809/59859850_large.webp