## Introduction

React Server Components represent a paradigm shift in how we build React applications. They allow components to run on the server, reducing the JavaScript bundle sent to the client and enabling new patterns for data fetching and rendering.

## Understanding the Basics

Server Components run only on the server and never on the client. This means they can:

- Access server-side resources directly (databases, file systems)
- Keep large dependencies on the server
- Automatically split the bundle by executing some components on the server

## Implementation in Next.js

Next.js has integrated Server Components as a core feature in the App Router. By default, all components in the App Router are Server Components unless specified as Client Components.

```jsx
// This component runs on the server
export default async function ProductPage({ params }) {
// Direct database access without an API
const product = await db.product.findUnique({
where: { id: params.id }
});

return (

);
}
```

## Conclusion

React Server Components offer a new approach to building React applications with improved performance and developer experience. By moving certain components to the server, we can reduce client-side JavaScript while maintaining the component model we love about React.