# DAC cable CBO QFX-QSFP-DACBO-3M-BL 3 m QSFP to 4×SFP+

**URL:** https://aio.lv/en/product--blueoptics-qfx-qsfp-dacbo-3m-bl--4466219
**Data updated:** 2026-02-25 16:31 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QFX-QSFP-DACBO-3M-BL
**EAN:** 4063232648828
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 124.49 €
**Prices and availability valid until:** 2026-08-07 23:59
**Price without VAT (21%):** 102.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qfx-qsfp-dacbo-3m-bl--4466219

## 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

Direct attach copper (DAC) cable CBO QFX-QSFP-DACBO-3M-BL is a 3-meter fixed-length twinax assembly providing a QSFP connector on one end and four SFP+ interfaces on the other. It is intended for short-reach interconnects in switches, servers and storage systems that support QSFP to SFP+ breakout, enabling 40Gbps to 4×10Gbps connections with low latency and reduced power compared with active modules.

## Long description

Direct attach copper (DAC) cable CBO QFX-QSFP-DACBO-3M-BL is a 3 meter fixed-length twinax assembly that provides a QSFP connector on one end and four SFP+ interfaces on the other. Designed for short-reach interconnects in data centre switches, servers and storage systems that support QSFP-to-SFP+ breakout, the cable enables a single 40 Gbps QSFP port to be split into four separate 10 Gbps SFP+ links. The passive copper construction delivers low latency and reduced power consumption compared with active optical modules, making it suitable for high-density, cost-sensitive deployments.
Advantages
The DAC cable offers a reliable, low-latency physical layer solution for 40 Gbps to 4×10 Gbps breakout configurations without the need for additional transceivers or fibre patching. Its fixed 3 m length simplifies cabling planning in rack and top-of-rack layouts and eliminates optical transceiver power draw and heat generation typical of active modules. The twinax construction provides consistent signal integrity for short-distance links and a compact connector design that fits standard QSFP and SFP+ ports.
Suitable for
 Short-reach connections between QSFP-capable switches and multiple SFP+ ports
 Server-to-switch or storage-to-switch links requiring breakout from 40 Gbps to 10 Gbps lanes
 High-density rack environments where power and cooling budgets are constrained
 Data centre top-of-rack (ToR) and aggregation layer cabling
Key specifications
 Length: 3 metres
 Connector types: QSFP (one end) to 4 × SFP+ (other end)
 Transmission: 40 Gbps aggregate to 4 × 10 Gbps lanes
 Cable type: Passive twinax copper assembly
 Intended reach: short-reach intra-rack or adjacent-rack links
 Latency: low, suitable for latency-sensitive applications
 Power: passive design, lower power consumption than active optical modules
How to use
Install the DAC cable by inserting the QSFP end into a compatible 40 Gbps QSFP port and connecting the four SFP+ ends to SFP+ ports on the target devices. Ensure that connected equipment supports QSFP-to-4×SFP+ breakout or the specific breakout mode required by the switch or host. Verify port speed and lane mapping in the device configuration and check link status indicators after connection. No additional transceivers, fibre patch panels, or power supplies are required for standard passive operation.
Usage recommendations
Use this cable for short-distance interconnects within racks or between adjacent racks. Avoid tight bends and mechanical strain on the cable and connectors; maintain manufacturer-recommended bend radius. For installations requiring longer reach or optical isolation, consider appropriate active or optical transceiver solutions instead of passive twinax.

## FAQ

### How much does the DAC cable CBO QFX-QSFP-DACBO-3M-BL 3 m cost, and is it available for purchase?

The price is 124.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 9 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/4466219/59857255_large.webp