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

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-2m-ia-bl--4466815
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-2M-IA-BL
**EAN:** 4063232101521
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 124.99 €
**Prices and availability valid until:** 2026-08-13 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-ia-bl--4466815

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 11.08.2026 | free |
| Pickup points | 14.08.2026 | 1.89 EUR |
| Courier delivery to door | 14.08.2026 | 4.99 EUR |

## Summary description

CBO QSFP28-DAC-2M is a 2-meter passive Direct Attach Copper (DAC) cable with QSFP28 connectors. Designed for short-reach 100GbE or 100G data center interconnects, it provides low-latency, energy-efficient connectivity between QSFP28 ports on switches, routers and servers. Suitable for rack-to-rack or within-rack links where a cost-effective, reliable copper connection is required.

## Long description

CBO QSFP28-DAC-2M is a 2‑meter passive Direct Attach Copper (DAC) cable with QSFP28 to QSFP28 connectors, engineered for short-reach 100GbE interconnects in data centre environments. The cable offers a fixed copper assembly for direct connection between QSFP28 ports on switches, routers and servers, delivering a low-latency and energy-efficient physical link for rack-to-rack or within-rack cabling. Its compact, passive design eliminates the need for separate transceivers while providing a stable electrical interface for high-speed 100 Gigabit Ethernet links.
Advantages
The passive construction results in lower power consumption compared with active optical solutions and removes the need for external power or cooling for the cable itself. The QSFP28 form factor ensures compatibility with equipment that supports QSFP28 electrical interfaces and 100GbE signalling. As a copper direct attach option, it typically provides lower latency and predictable signal characteristics for short distances, while offering cost-effective deployment and simplified inventory management compared with modular transceivers plus fibre patch cords.
Suitable for
Rack-to-rack 100GbE connections in data centres
Within-rack high-speed links between servers and top-of-rack switches
Short-reach aggregation and spine-to-leaf links where passive copper is acceptable
Environments requiring low-latency, energy-efficient interconnects
Key specifications
Connector type: QSFP28 to QSFP28
Cable type: Passive Direct Attach Copper (DAC)
Length: 2 metres
Supported data rate: 100Gbps (100 Gigabit Ethernet)
Typical application: Short-reach, within-rack or rack-to-rack links
Latency profile: Low latency for electrical copper connections
Construction: Fixed, factory-terminated copper assembly
How to use
Insert each QSFP28 connector into the corresponding QSFP28 port on your network equipment until the latch engages. Ensure that both devices support 100GbE over passive QSFP28 copper DACs and that ports are configured for the intended link speed. Avoid bending the cable beyond its minimum bend radius and route it to prevent strain on the connectors. For proper operation, verify link status and speed via the host devices after connection and perform standard network tests to confirm throughput and error rates.
Usage recommendations
Use this 2 m passive QSFP28 DAC for short-distance links where cost, power consumption and low latency are priorities. Do not use for distances beyond the recommended short-reach range; for longer runs, consider optical transceivers and fibre cabling. Store the cable in a clean, dry environment and avoid sharp bends or excessive pulling when installing to maintain signal integrity.

## FAQ

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

The price is 124.99 € (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 11.08.2026 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

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