# InfiniBand Market

> InfiniBand Market valued at USD 10.54 billion in 2025, forecast to reach USD 20.85 billion by 2035 at 7.06% CAGR, led by AI cluster fabrics.

Publisher: DC Market Insights  
Author: Amit Jain, DC Market Insights  
Published: 2026-10-10  
Last updated: 2026-10-10  
Next review: Apr 2027  
Page: https://www.dcmarketinsights.com/report/infiniband-market

## Key takeaways

- AI Back-End Fabrics Carry USD 4.72 Million of InfiniBand per MW
- Co-Packaged Optics Cut Optical Power to as Low as 9 W
- Ethernet for AI Takes a Growing Share of New Fabrics
- GPU and Neocloud Providers More Than Double Their Spend by 2035

**Frequently Asked Questions**

**What is the size of the InfiniBand Market in 2025 and 2035?**

USD 10.54 billion in 2025, rising to USD 20.85 billion by 2035. DC Market Insights estimates the market at USD 1.90 billion in 2020.

**How fast is the InfiniBand Market growing?**

7.06% a year from 2025 to 2035. Growth was much faster, at 40.81% a year, between 2020 and 2025 as AI training clusters scaled up.

**Which component leads the InfiniBand Market?**

USD 4.13 billion, or 39.2% of the market in 2025, for switches, the leading component. Software and services grow fastest among components at 10.31% a year.

**How much InfiniBand does an AI cluster buy per MW?**

About USD 4.72 million per MW of AI capacity in 2025, falling to USD 3.86 million by 2035, according to DC Market Insights estimates covering switches, adapters, cables, transceivers and software.

**Which region leads the InfiniBand Market?**

USD 5.67 billion, or 53.8% of 2025 value, in North America, the leading region. The Middle East and Africa grows fastest at 11.81% a year.

**Who leads the InfiniBand Market?**

About 84% for NVIDIA, the market leader (DC Market Insights estimate). Hewlett Packard Enterprise, IBM, Intel, Amphenol, TE Connectivity, Coherent, Broadcom and other IBTA members supply systems, cables, optics and components.

**Is Ethernet replacing InfiniBand in AI clusters?**

46% of new AI capacity used InfiniBand in 2025, falling to 30% by 2030 in the DC Market Insights model, but the market still roughly doubles to USD 20.85 billion by 2035.

**Which country spends the most on InfiniBand?**

USD 5.13 billion in the United States, or 48.7% of 2025 spending, followed by China at USD 875.83 million. India grows fastest among large country markets at 13.71% a year (DC Market Insights estimate).

## Market by region (USD million)

## Dataset

| Series | Value | Unit |
| --- | --- | --- |
| Market size 2025 | 10,540 | USD million |
| Revenue CAGR | 7.06 | % |
| Market size 2035 | 20,850 | USD million |

## Frequently asked questions

### What is the size of the InfiniBand Market in 2025 and 2035?

USD 10.54 billion in 2025, rising to USD 20.85 billion by 2035. DC Market Insights estimates the market at USD 1.90 billion in 2020.

### How fast is the InfiniBand Market growing?

7.06% a year from 2025 to 2035. Growth was much faster, at 40.81% a year, between 2020 and 2025 as AI training clusters scaled up.

### Which component leads the InfiniBand Market?

USD 4.13 billion, or 39.2% of the market in 2025, for switches, the leading component. Software and services grow fastest among components at 10.31% a year.

### How much InfiniBand does an AI cluster buy per MW?

About USD 4.72 million per MW of AI capacity in 2025, falling to USD 3.86 million by 2035, according to DC Market Insights estimates covering switches, adapters, cables, transceivers and software.

### Which region leads the InfiniBand Market?

USD 5.67 billion, or 53.8% of 2025 value, in North America, the leading region. The Middle East and Africa grows fastest at 11.81% a year.

### Who leads the InfiniBand Market?

About 84% for NVIDIA, the market leader (DC Market Insights estimate). Hewlett Packard Enterprise, IBM, Intel, Amphenol, TE Connectivity, Coherent, Broadcom and other IBTA members supply systems, cables, optics and components.

### Is Ethernet replacing InfiniBand in AI clusters?

46% of new AI capacity used InfiniBand in 2025, falling to 30% by 2030 in the DC Market Insights model, but the market still roughly doubles to USD 20.85 billion by 2035.

### Which country spends the most on InfiniBand?

USD 5.13 billion in the United States, or 48.7% of 2025 spending, followed by China at USD 875.83 million. India grows fastest among large country markets at 13.71% a year (DC Market Insights estimate).

## How to cite

Data Center Market Research & Consulting | DC Market Insights, "InfiniBand Market", updated 2026-10-10, https://www.dcmarketinsights.com/report/infiniband-market