# BlueOptics 40G-QSFP-4SFP-C-3M-BL InfiniBand fibre optic cable 4xSFP+ 3m

**URL:** https://aio.lv/en/product--blueoptics-40g-qsfp-4sfp-c-3m-bl--5056827
**Data updated:** 2026-03-30 19:41 (EEST)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** 40G-QSFP-4SFP-C-3M-BL
**EAN:** 4063232144443
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The BlueOptics 40G-QSFP-4SFP-C-3M-BL is a high-performance fibre optic cable designed for InfiniBand applications. It features a QSFP connector on one end and four SFP+ connectors on the other, allowing for efficient data transmission over a distance of 3 meters. This cable is ideal for connecting high-speed network devices in data centers and enterprise environments.

## Long description

The BlueOptics 40G-QSFP-4SFP-C-3M-BL InfiniBand fibre optic cable 4xSFP+ 3m is a 3-meter direct attach solution with a QSFP connector on one end and four SFP+ connectors on the other. Designed for short-reach high-speed interconnects, this cable supports aggregation of four 10 Gbit/s lanes into a single 40 Gbit/s link and is suitable for use in data center racks and adjacent rack connections. The product follows MSA-compliant electrical twinax characteristics for reliable signal transmission where InfiniBand, Ethernet, FCoE or Fibre Channel protocols are implemented on compatible hardware platforms.
Advantages
This cable provides a compact, low-latency connection solution for short-distance links with a consolidated 40G to 4x10G split. As a passive direct attach cable it has reduced power consumption and simple design that minimizes failure points. The 30 AWG twinax construction and quality components ensure consistent electrical performance across the 3 m length and support wide interoperability with major vendors’ switches, routers and storage systems that accept QSFP-to-4xSFP+ direct attach connections.
Suitable for
High-speed server-to-switch or switch-to-switch links within racks and between adjacent racks
InfiniBand clusters and SAN interconnects using aggregated 40G lanes
Short-reach 40GBase-CR4 and 4x10GBASE-CR applications for data centers and enterprise environments
Key specifications
Cable type: passive direct attach twinax copper (electrical DAC)
Connectors: 1×QSFP to 4×SFP+
Data rate: up to 40 Gbit/s aggregated (4×10 Gbit/s lanes)
Length: 3 meters
Wire gauge: 30 AWG
Standards: MSA-compliant QSFP and SFP+ electrical interfaces
How to use
Connect the QSFP end to a compatible QSFP port and the four SFP+ ends to the corresponding SFP+ ports on the target device. Ensure both devices support passive DAC twinax connections and the intended protocol (InfiniBand, Ethernet, FCoE, or Fibre Channel). Install the cable in rack environments following standard cable routing practices to avoid sharp bends and mechanical stress. No external power or configuration is required for the passive cable itself; any required link settings or protocol configuration must be performed on the connected network devices.
Usage recommendations
Verify hardware compatibility with the device vendor documentation before installation, keep bend radius above the manufacturer’s minimum, and avoid routing the cable near high-EMI sources. For best results in mission-critical systems, test links after installation and consider sampling one cable in your environment to confirm interoperability with your hardware and firmware versions.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.25 kg |
| Package weight | 260 g |
| Cable length | 3 m |
| Data transfer rate | 40 Gbit/s |
| Product colour | Black |
| Connector 1 | QSFP |
| Connector 2 | 4xSFP+ |
| 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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