# CBO DAC cable QSFP28-DAC-1M 1m passive copper QSFP28 to QSFP28

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-1m-at-bl--4466769
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-1M-AT-BL
**EAN:** 4063232100906
**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-at-bl--4466769

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.08.2026 | free |
| Pickup points | 11.08.2026 | 1.89 EUR |
| Courier delivery to door | 11.08.2026 | 4.99 EUR |

## Summary description

CBO DAC cable QSFP28-DAC-1M is a 1-meter passive copper direct attach cable designed for QSFP28 ports. It provides a low-latency, short-reach connection between compatible network devices supporting 100GbE or similar QSFP28 applications. The fixed copper assembly offers plug-and-play installation, reduced power consumption versus active optics, and is suitable for data center switch-to-switch, server-to-switch, or top-of-rack interconnects.

## Long description

CBO DAC cable QSFP28-DAC-1M is a 1-meter passive copper direct attach cable for QSFP28 ports. It provides a low-latency, short-reach connection for devices that support QSFP28 interfaces and 100 Gigabit Ethernet applications. The fixed, factory-terminated assembly plugs directly into compatible QSFP28 ports and requires no additional transceivers, offering a compact, cost-efficient link ideal for dense data center topologies and server or switch interconnects.
Advantages
The passive copper construction reduces power consumption compared with active optical solutions and delivers predictable latency and signal integrity over short distances. Being a direct attach cable, it simplifies installation with plug-and-play operation and eliminates the need to manage separate transceiver modules. The 1 m length balances reach and cable management requirements in rack-to-rack or top-of-rack deployments.
Suitable for
Short-reach 100GbE connections between switches
Server-to-switch direct links in high-density racks
Top-of-rack and patching applications within the same equipment room
Environments where reduced power draw and low latency are priorities
Key specifications
Connector type: QSFP28 to QSFP28
Cable type: Passive copper direct attach
Nominal length: 1 meter
Supported application: 100 Gigabit Ethernet and compatible QSFP28 protocols
Deployment: Short-reach, within-rack and adjacent-rack interconnects
How to use
Insert each QSFP28 plug into the corresponding QSFP28 port on the two devices until the latch secures. Ensure both devices are powered and configured for the required 100GbE link settings; most systems will auto-negotiate when a compatible DAC is detected. Route the 1 m cable to avoid sharp bends and excessive compression; maintain recommended bend radius and secure the cable to prevent strain on the connectors. If link does not come up, verify port compatibility, firmware settings, and device support for passive DACs.
Usage recommendations
Use this 1 m passive QSFP28 DAC for short-distance interconnects inside racks or between adjacent racks. Avoid exposing the cable to electrical interference and maintain clear access to QSFP28 ports for insertion and removal. For longer distances or fiber compatibility requirements, consider optical transceivers and fiber cabling instead.

## FAQ

### How much does the CBO QSFP28-DAC-1M 1m 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 06.08.2026 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/4466769/59858096_large.webp