# DAC cable CBO QSFP28-DAC-2M 2m Passive Copper QSFP28 to QSFP28

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-2m-sw-bl--4466835
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-2M-SW-BL
**EAN:** 4063232101699
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 124.49 €
**Prices and availability valid until:** 2026-08-06 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-sw-bl--4466835

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 05.08.2026 | free |
| Pickup points | 10.08.2026 | 1.89 EUR |
| Courier delivery to door | 10.08.2026 | 4.99 EUR |

## Summary description

CBO QSFP28-DAC-2M is a 2-meter passive copper DAC cable with QSFP28 connectors at both ends, intended for direct server-to-switch or switch-to-switch 100Gbps interconnections within racks or short-distance data centre links. It provides a low-latency, cost-effective solution for high-speed 100G ports where active optics are not required and simplifies installation without transceivers.

## Long description

The CBO QSFP28-DAC-2M 2m Passive Copper DAC cable is a 2-metre direct attach copper solution with QSFP28 connectors on both ends designed for 100Gbps links. It connects QSFP28 ports in servers, switches or network appliances within racks or across short-distance data centre topologies. As a passive copper assembly, it eliminates the need for separate optical transceivers and provides a straightforward, low-latency electrical connection for short reach 100G applications.
Advantages
This passive DAC cable offers a cost-effective alternative to active optics for short-range 100Gbps interconnects by combining integrated QSFP28 connectors with a fixed copper assembly. It delivers low latency and stable electrical performance without the power and heat penalties of active modules. Installation is simplified because no additional transceivers are required, and the fixed-length cable reduces points of failure and inventory complexity in dense rack deployments.
Suitable for
Short-reach 100Gbps server-to-switch connections within a rack
Switch-to-switch interconnects across adjacent racks or within the same data hall
High-density top-of-rack deployments where space, power and cooling are constrained
Environments where deterministic low latency is required for storage or compute clusters
Key specifications
Connector type: QSFP28 to QSFP28, integrated
Length: 2 metres (fixed)
Transmission medium: Passive twinax copper
Rated data rate: 100 Gbps
Latency: electrical, minimal added latency compared with optical transceivers
Power: passive (no external power required)
Typical use case: short-reach interconnects in data centre and enterprise networks
How to use
Install the cable by inserting each QSFP28 connector into the corresponding port on the devices until the latch engages. Ensure both devices support passive QSFP28 direct attach copper connections and that ports are configured for 100Gbps operation if required. Route the 2m cable to avoid sharp bends and mechanical strain; maintain the manufacturer’s minimum bend radius and secure the cable to reduce movement in dense server racks. No transceiver configuration is necessary beyond standard interface settings on the network devices.
Usage recommendations
Use this passive DAC for rack-level or adjacent-rack 100G links where distance does not exceed the fixed 2m length. Avoid exposure to excessive mechanical stress, moisture, or temperatures outside typical data centre ranges. Verify device compatibility with passive QSFP28 cables before deployment and follow standard hot-plug procedures when inserting or removing the cable to protect ports and connectors.

## FAQ

### How much does the DAC cable CBO QSFP28-DAC-2M 2m 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 05.08.2026 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/4466835/59859855_large.webp