VMware ESXi: The Purpose-Built Bare Metal Hypervisor

Discover a robust, bare-metal hypervisor that installs directly onto your physical server. With direct access to and control of underlying resources, VMware ESXi effectively partitions hardware to consolidate applications and cut costs. It’s the industry leader for efficient architecture, setting the standard for reliability, performance, and support.

What ESXi Delivers


IT teams are under constant pressure to meet fluctuating market trends and heightened customer demands. At the same time, they must stretch IT resources to accommodate increasingly complex projects. Fortunately, ESXi formerly known as ESX helps balance the need for both better business outcomes and IT savings. VMware ESXi enables you to:

  • Consolidate hardware for higher capacity utilization.
  • Increase performance for a competitive edge.
  • Streamline IT administration through centralized management.
  • Reduce CapEx and OpEx.
  • Minimize hardware resources needed to run the hypervisor, meaning greater efficiency.


Your Go-To Guide on Vmware ESXI Compatibility

Your Go-To Guide for VMware Compatibility

Get all your vSphere hardware, ESXi hardware, and operating system compatibility questions answered.

Discover Performance Best Practices

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Test Your Limits

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By consolidating multiple servers onto fewer physical devices, ESXi reduces space, power and IT administrative requirements while driving high-speed performance.


Small Footprint

With a footprint of just 150MB, ESXi lets you do more with less while minimizing security threats to your hypervisor.


Reliable Performance

Accommodate apps of any size. Configure virtual machines up to 128 virtual CPUs, 6 TB of RAM and 120 devices to satisfy all your application needs. Consult individual solution limits to ensure you do not exceed supported configurations for your environment. Learn more about configuration maximums.


Enhanced Security

Protect sensitive virtual machine data with powerful encryption capabilities. Role-based access simplifies administration, and extensive logging and auditing ensure greater accountability and easier forensic analysis.


Ecosystem Excellence

Get support for a broad ecosystem of hardware OEM vendors, technology service partners, apps, and guest operating systems.


User-Friendly Experience

Manage day-to-day administrative operations with built-in modern UI based on HTML5 standards. For customers who need to automate their operations, VMware offers both a vSphere Command Line Interface and developer-friendly REST-based APIs.



ACI Specialty Benefits

ACI Specialty Benefits: Handled 300% Annual Growth in Digital Benefits Coverage


"Nobody knows exactly what’s going to happen when a company is growing at 300% a year, so we have to be ready for anything. With our software-defined data center powered by VMware, we can scale easily, sustain our growth in a controlled and compliant manner, and respond quickly to new business demands". - Ryan Fay, Global CIO, ACI Specialty Benefits


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Customers can use ESXi (ESX) as part of a paid vSphere edition or with the free vSphere Hypervisor edition, which enables you to create and provision your virtual machines easily and within minutes.



Get the best performance, availability, and efficiency from your infrastructure and applications. vSphere is the ideal foundation for any cloud environment.

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vCenter Server

Minimize IT complexities and management headaches by expanding ESXi’s capabilities.

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vSphere Hypervisor

Download a free bare-metal hypervisor that virtualizes servers, so you can consolidate your applications on less hardware.

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