# DAC cable CBO QSFP28-DAC-1M 1m passive copper 100G

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-1m-qn-bl--4466795
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-1M-QN-BL
**EAN:** 4063232101170
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 104.49 €
**Prices and availability valid until:** 2026-08-07 23:59
**Price without VAT (21%):** 86.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp28-dac-1m-qn-bl--4466795

## 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-1M is a 1-meter passive copper DAC cable designed for 100G data links. It uses QSFP28 connectors for direct attachment between compatible network devices, providing low-latency, energy-efficient short-reach connectivity in data centers, switches and servers. Ideal for cost-effective interconnects and rack-level cabling.

## Long description

CBO QSFP28-DAC-1M 1m passive copper 100G is a 1‑metre direct attach copper (DAC) cable with QSFP28 connectors designed to establish 100G links between compatible network devices. The cable delivers short‑reach connectivity for data centre top‑of‑rack and aggregation environments where low latency and energy efficiency are required. It is intended for direct device‑to‑device connections such as switch‑to‑switch, switch‑to‑server or server‑to‑server within the same rack or adjacent racks.
Advantages
The passive copper construction provides stable 100G electrical signalling with minimal added latency compared with active modules. The QSFP28 form factor enables high-density ports and simple plug‑and‑play installation without additional transceivers. At 1 metre length the cable reduces power consumption and heat generation relative to active optical solutions, offering a cost‑effective option for short‑reach interconnects in rack and chassis environments.
Suitable for
 Short‑reach 100G links in data centres and server rooms
 Direct switch‑to‑switch or switch‑to‑server connections
 Top‑of‑rack and adjacent rack interconnect cabling
 High‑density port deployments where QSFP28 is supported
Key specifications
 Connector type: QSFP28 to QSFP28
 Length: 1 metre (passive copper)
 Rated speed: 100 Gigabit Ethernet
 Physical medium: passive twinax copper
 Typical use: short‑reach, direct attach interconnect
 Form factor: QSFP28 direct attach cable
How to use
Ensure both devices support QSFP28 passive DAC connections and that firmware or port settings are configured for 100G operation. Insert each QSFP28 plug fully into the corresponding port until the latch engages. Confirm link status on connected devices and monitor for proper negotiation and 100G link speed. Avoid excessive bending or stress near the connector ends and route the cable to prevent obstruction of airflow within racks.
Usage recommendations
Use this 1m passive DAC cable for short interconnects where low latency and energy efficiency are priorities. Verify device compatibility with QSFP28 passive copper cables and follow vendor guidance on supported cable lengths and port settings. For longer distances or different topologies consider optical transceivers or active DAC alternatives.

## FAQ

### How much does the CBO QSFP28-DAC-1M 1m 100G passive DAC cable cost, and is it available for purchase?

The price is 104.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 246 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/4466795/59855546_large.webp