# DAC cable CBO QSFP28-DAC-3M 3 m passive copper QSFP28 for short‑reach connections

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-3m-ss-bl--4466868
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-3M-SS-BL
**EAN:** 4063232102108
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 134.49 €
**Prices and availability valid until:** 2026-08-26 23:59
**Price without VAT (21%):** 111.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp28-dac-3m-ss-bl--4466868

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 24.08.2026 | free |
| Pickup points | 27.08.2026 | 1.79 EUR |
| Courier delivery to door | 27.08.2026 | 4.99 EUR |

## Summary description

Passive copper DAC cable CBO QSFP28-DAC-3M, 3 meters, with QSFP28 connector designed for short‑reach high‑speed interconnects. Suitable for direct connections between switches, routers or network adapters supporting QSFP28 interfaces. Offers low-latency, low-power physical link for 100GbE and compatible systems where passive copper is supported.

## Long description

BlueOptics DAC cable CBO QSFP28-DAC-3M is a 3 meter passive copper direct-attach cable with QSFP28 connectors, engineered for short-reach high-speed interconnects. Designed for environments where low latency and low power consumption are required, this cable provides a straightforward physical link for 100 Gigabit Ethernet connections between compatible switches, routers or network adapters. The passive construction eliminates active optical components, making it a cost-effective choice for rack-to-rack or chassis-to-chassis connections within a single equipment room or data center row.
Advantages
The passive copper design delivers low latency and minimal power overhead compared with active optics, while providing reliable signal integrity over the specified 3 m reach. QSFP28 connectors ensure compatibility with standard 100GbE QSFP28 ports and support direct interconnection without additional transceivers. The fixed-length cable reduces component count and simplifies installation and maintenance in dense networking deployments.
Suitable for
Short-reach 100GbE links between top-of-rack or leaf switches
Direct connection between routers and network adapters with QSFP28 ports
High-density data center row interconnects and intra-rack cabling
Lab environments and test setups requiring low-latency copper links
Key specifications
Connector type: QSFP28 to QSFP28
Cable type: Passive copper direct-attach (DAC)
Length: 3 m
Supported data rate: 100 Gigabit Ethernet (100GbE) compatibility
Form factor: Fixed-length twinax/DAC cable for short reach
Typical applications: Rack-to-rack and chassis-to-chassis interconnects
How to use
Install the cable by aligning and inserting each QSFP28 connector into the corresponding QSFP28 port on your network devices until the latch engages. Ensure both devices support passive DAC connections and are configured for the same link speed and lane settings. Avoid sharp bends and mechanical stress on the cable; maintain the recommended bend radius and secure the cable to prevent strain on the connectors. For troubleshooting, verify link status LEDs on connected equipment and check port settings in device management interfaces.
Usage recommendations
Use this 3 m passive QSFP28 DAC for short-distance interconnects inside the same rack or adjacent racks. Confirm compatibility with your switch or host vendor documentation regarding passive DAC support and port configuration before deployment.

## FAQ

### How much does the CBO QSFP28-DAC-3M 3 m passive QSFP28 DAC cable cost, and is it available for purchase?

The price is 134.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 312 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 24.08.2026 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/4466868/59855554_large.webp