# DAC Cable BlueOptics X4DACBL3-BL 3m QSFP 4x SFP+ Black

**URL:** https://aio.lv/en/product--blueoptics-x4dacbl3-bl--4471822
**Data updated:** 2026-02-25 16:36 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** X4DACBL3-BL
**EAN:** 4063232009650
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The BlueOptics X4DACBL3-BL is a 3-meter DAC cable designed for high-speed data transfer. It features a QSFP connector on one end and four SFP+ connectors on the other, making it ideal for connecting multiple devices in data centers. This cable provides reliable performance and is suitable for short-distance connections, ensuring efficient data transmission with minimal latency.

## Long description

The BlueOptics X4DACBL3-BL 3m QSFP 4x SFP+ Black is a direct attach copper (DAC) cable designed for short-range, high-speed connections in networking environments. With a QSFP plug on one end and four SFP+ plugs on the other, this 3-meter cable enables aggregation of four 10Gb/s links into a single QSFP port for efficient rack-to-rack or within-rack interconnects. The cable is intended for data center and server switch connections where low latency and dependable throughput are required.
Advantages
This DAC cable offers low latency and consistent electrical performance over a 3 m reach, reducing power consumption compared with active optical alternatives. The integrated QSFP-to-4xSFP+ configuration simplifies cabling by combining multiple lanes into a single harness, lowering port usage and physical cable bulk. The cable’s construction ensures stable signal integrity suitable for high-density installations and hot-pluggable compatibility with supported QSFP and SFP+ ports.
Suitable for
Top-of-rack and end-of-row switch interconnects
Connecting servers to aggregation switches in data centers
High-density switch fabric environments requiring multiple 10Gb links
Short-distance links inside server racks or between adjacent racks
Key specifications
Cable type: Direct attach copper (passive DAC)
Length: 3 meters
Connector A: QSFP (quad SFP+ interface)
Connector B: 4 × SFP+
Aggregate data rate: supports four 10 Gbps lanes (up to 40 Gbps total via QSFP)
Typical use distance: short-reach intra-rack or inter-rack connections
Compatibility: QSFP and SFP+ ports supporting passive DAC interconnects
How to use
Ensure both the QSFP port and the target SFP+ ports on your switches or servers are powered down or follow hot-plug guidance from the equipment vendor before insertion. Align the QSFP connector with the QSFP socket and gently insert until it seats; then connect each SFP+ plug to the corresponding SFP+ ports. Verify link status in the host devices’ management interfaces and confirm lanes are aggregated as expected. If the devices support hot-plug, the cable can be inserted or removed while the equipment is running, but follow vendor instructions to avoid link flapping.
Usage recommendations
Use this 3 m DAC cable for short, high-performance links inside racks or between adjacent racks. Avoid routing the cable near sources of strong electromagnetic interference and do not exceed the recommended bend radius. Consult your switch or server documentation for compatibility with passive DAC cables and for any firmware or transceiver restrictions.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.25 kg |
| Operating temperature (T-T) | 0 - 70 |
| Cable length | 3 m |
| Cable type | DAC |
| Data transfer rate | 40 Gbit/s |
| Product colour | Black |
| Connector 1 | QSFP |
| Connector 2 | 4x SFP+ |
| Connector 1 gender | Male |
| Connector 2 gender | Male |
| InfiniBand protocol | Yes |

## FAQ

### 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

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