# Data Center Interconnect Market

> Data Center Interconnect Market valued at USD 12.21 billion in 2025, forecast to reach USD 28.14 billion by 2035 at 8.71% CAGR, led by AI scale-across.

Publisher: DC Market Insights  
Author: Amit Jain, DC Market Insights  
Published: 2026-10-07  
Last updated: 2026-10-07  
Next review: Apr 2027  
Page: https://www.dcmarketinsights.com/report/data-center-interconnect-market

## Key takeaways

- AI Halls Raise Interconnect Spend per MW to USD 0.78 Million
- Line Rates Move from 400G to 800G and 1.6T
- Price per Bit Falls Faster Than Spend Rises
- GPU and Neocloud Providers Grow Interconnect Spend to USD 3.71 Billion

**Frequently Asked Questions**

**What is the size of the Data Center Interconnect Market in 2025 and 2035?**

USD 12.21 billion in 2025, rising to USD 28.14 billion by 2035. DC Market Insights estimates the market at USD 7.43 billion in 2020.

**How fast is the Data Center Interconnect Market growing?**

8.71% a year from 2025 to 2035. Growth was faster, at 10.45% a year, between 2020 and 2025, and 2025 alone added 15.6% as hyperscalers began linking AI campuses.

**Which offering leads the Data Center Interconnect Market?**

Optical DCI systems, with USD 5.03 billion or 41.2% of the market in 2025. Coherent pluggable optics are the fastest-growing offering at 13.32% a year.

**How much do data centers spend on interconnect per MW?**

About USD 0.24 million per MW for a conventional hall and USD 0.78 million per MW for an AI hall in 2025, according to DC Market Insights estimates.

**Which region leads the Data Center Interconnect Market?**

North America, with USD 5.47 billion or 44.8% of 2025 value. The Middle East and Africa grows fastest at 12.34% a year.

**Who are the leading companies in the Data Center Interconnect Market?**

Ciena leads with about 15% of the market (DC Market Insights estimate). Nokia, Cisco, Huawei, Juniper Networks, Arista Networks, Marvell Technology, ZTE, Adtran, Lumentum, Coherent, Ribbon Communications, NEC and FiberHome also compete.

**Which buyers spend the most on data center interconnect?**

Cloud and hyperscale providers, with USD 5.84 billion or 47.8% of 2025 demand. GPU and neocloud providers grow fastest at 16.33% a year.

**How fast is distributed AI training interconnect growing?**

16.41% a year, from USD 2.10 billion in 2025 to USD 9.59 billion in 2035, when scale-across becomes the largest application at 34.1% of the market.

## Market by region (USD million)

## Dataset

| Series | Value | Unit |
| --- | --- | --- |
| Market size 2025 | 12,210 | USD million |
| Revenue CAGR | 8.71 | % |
| Market size 2035 | 28,140 | USD million |

## Frequently asked questions

### What is the size of the Data Center Interconnect Market in 2025 and 2035?

USD 12.21 billion in 2025, rising to USD 28.14 billion by 2035. DC Market Insights estimates the market at USD 7.43 billion in 2020.

### How fast is the Data Center Interconnect Market growing?

8.71% a year from 2025 to 2035. Growth was faster, at 10.45% a year, between 2020 and 2025, and 2025 alone added 15.6% as hyperscalers began linking AI campuses.

### Which offering leads the Data Center Interconnect Market?

Optical DCI systems, with USD 5.03 billion or 41.2% of the market in 2025. Coherent pluggable optics are the fastest-growing offering at 13.32% a year.

### How much do data centers spend on interconnect per MW?

About USD 0.24 million per MW for a conventional hall and USD 0.78 million per MW for an AI hall in 2025, according to DC Market Insights estimates.

### Which region leads the Data Center Interconnect Market?

North America, with USD 5.47 billion or 44.8% of 2025 value. The Middle East and Africa grows fastest at 12.34% a year.

### Who are the leading companies in the Data Center Interconnect Market?

Ciena leads with about 15% of the market (DC Market Insights estimate). Nokia, Cisco, Huawei, Juniper Networks, Arista Networks, Marvell Technology, ZTE, Adtran, Lumentum, Coherent, Ribbon Communications, NEC and FiberHome also compete.

### Which buyers spend the most on data center interconnect?

Cloud and hyperscale providers, with USD 5.84 billion or 47.8% of 2025 demand. GPU and neocloud providers grow fastest at 16.33% a year.

### How fast is distributed AI training interconnect growing?

16.41% a year, from USD 2.10 billion in 2025 to USD 9.59 billion in 2035, when scale-across becomes the largest application at 34.1% of the market.

## How to cite

Data Center Market Research & Consulting | DC Market Insights, "Data Center Interconnect Market", updated 2026-10-07, https://www.dcmarketinsights.com/report/data-center-interconnect-market