# DAC cable CBO QSFP28-DAC-2M 2 m passive copper for QSFP28 ports

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-2m-ci-bl--4466807
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-2M-CI-BL
**EAN:** 4063232101415
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 124.99 €
**Prices and availability valid until:** 2026-08-23 23:59
**Price without VAT (21%):** 103.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp28-dac-2m-ci-bl--4466807

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 21.08.2026 | free |
| Pickup points | 26.08.2026 | 1.79 EUR |
| Courier delivery to door | 26.08.2026 | 4.99 EUR |

## Summary description

Passive copper DAC cable CBO QSFP28-DAC-2M, 2-meter length, designed for direct QSFP28-to-QSFP28 connections. Provides a cost-effective, low-latency link for short-reach high-speed networking (40/100 Gbps depending on equipment). Ideal for rack-to-rack or intra-rack connections in data centers and telecom closets where active optics are unnecessary.

## Long description

Passive copper DAC cable CBO QSFP28-DAC-2M is a 2 metre direct attach cable engineered for QSFP28-to-QSFP28 ports. Designed for short-reach high-speed connectivity, this DAC cable provides a simple, low-latency electrical link between switches, routers or server adapters supporting QSFP28 interfaces. The cable supports typical 40/100 Gbps server and switch port configurations depending on connected equipment and is intended for rack-to-rack and intra-rack installations where active optical transceivers are not required.
Advantages
The passive construction delivers lower power consumption and reduced heat compared with active modules, while keeping acquisition and operational costs low. Its fixed 2 m length simplifies cable management in dense racks and telecom enclosures. The cable offers predictable signal integrity for short distances and eliminates the need for separate transceivers, which reduces component count and simplifies deployment and inventory tracking.
Suitable for
 Short-reach connections between QSFP28 ports in the same rack
 Rack-to-rack links in data centre rows and cabinets
 Interconnects between switches, routers and server NICs with QSFP28 interfaces
 High-density patching environments where low latency is required
Key specifications
 Connector type: QSFP28 to QSFP28 compatible
 Cable type: Passive twinax copper direct attach
 Length: 2 metres
 Supported data rates: up to 40/100 Gbps depending on equipment
 Application: short-reach, intra-rack and rack-to-rack network links
 Power use: passive (no external power required)
How to use
Insert each QSFP28 connector firmly into the corresponding port until the latch engages. Ensure both endpoints support the intended data rate (40 Gbps or 100 Gbps) and confirm the port configuration in your switch or host adapter before traffic is applied. Route the cable to avoid sharp bends and mechanical strain; maintain bend radii recommended by the equipment vendor. For best results, verify link status and speeds in the device management interface after installation.
Usage recommendations
Use this 2 m passive DAC for short-distance links inside racks and between adjacent racks. Avoid using passive copper DACs for longer distances or in environments where electrical interference is a concern. For deployments requiring optical isolation, longer reach, or fibre backbone integration, consider active optical solutions or fibre transceivers instead.

## FAQ

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

The price is 124.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 269 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 21.08.2026 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/4466807/59875856_large.webp