# CBO QSFP28 Direct Attach DAC Cable 0.5m — QSFP28-DAC-0.5M

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-05m-ao-bl--4466734
**Data updated:** 2026-02-24 11:00 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-0.5M-AO-BL
**EAN:** 4063232100449
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 105.49 €
**Prices and availability valid until:** 2026-08-02 23:59
**Price without VAT (21%):** 87.18 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp28-dac-05m-ao-bl--4466734

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.89 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

CBO QSFP28 Direct Attach Copper (DAC) cable, 0.5 m length, model QSFP28-DAC-0.5M. Designed for short-reach high-speed connections between QSFP28 ports in switches, routers and servers. Provides low-latency, energy-efficient 100GbE links without optics. Ideal for data center rack-to-rack or top-of-rack interconnects where reliable, low-cost cabling is required.

## Long description

The CBO QSFP28 Direct Attach Copper (DAC) cable 0.5m is a short-reach, high-bandwidth interconnect designed for 100GbE links between QSFP28 ports in switches, routers and servers. This passive copper assembly provides a direct electrical connection without optical transceivers, enabling low-latency and energy-efficient data transfers in dense rack environments. Its 0.5 metre length suits rack-to-rack or top-of-rack connections where predictable performance and compact cabling are required.
Advantages
This QSFP28-DAC-0.5M cable delivers consistent 100GbE throughput with minimal latency and low power consumption compared with active optical solutions. The integrated QSFP28 connectors provide a stable mechanical fit and straightforward plug-and-play installation. The short length reduces signal attenuation and simplifies cable management in data center racks, while the copper medium eliminates the need for separate optical transceivers, lowering overall link cost.
Suitable for
 Short-reach 100GbE links between QSFP28 ports in network switches and routers
 Top-of-rack (ToR) and rack-to-rack interconnects in data centers
 High-performance server uplinks and aggregation ports
 Low-latency connections for storage and compute clusters
Key specifications
 Connector type: QSFP28 to QSFP28
 Cable medium: Direct attach copper (DAC), passive
 Length: 0.5 m
 Data rate: Suitable for 100 Gigabit Ethernet links
 Latency: Low, direct electrical connection
 Power consumption: Lower than comparable optical transceiver links
How to use
Insert each QSFP28 connector into the corresponding QSFP28 port on your network devices until the latch clicks into place. Ensure ports are powered down or follow hot-swap guidelines from your equipment vendor if installing into live systems. Verify link status in the device management interface and confirm 100GbE negotiation. For removal, depress the connector latch and withdraw the plug straight out to avoid damaging the port.
Usage recommendations
Use this 0.5m DAC cable for short internal links within racks or between adjacent racks. Avoid excessive bending and secure the cable to prevent strain on QSFP28 connectors. Check device compatibility and firmware support for passive DAC assemblies to ensure full functionality.

## FAQ

### How much does the CBO QSFP28 Direct Attach DAC Cable 0.5m cost, and is it available for purchase?

The price is 105.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 226 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 03.08.2026 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/4466734/59855539_large.webp