Providing organizations with access to the advanced security, management, and virtualization features of Windows Enterprise edition for devices, such as Windows-based systems and virtual desktop infrastructure (VDI) environments on platforms such as Microsoft Azure, Windows 10/11 Enterprise E3 VDA is a license that is based on a subscription and is purchased on a per-user basis. Users are able to access their virtual desktops from any location thanks to the E3 VDA license, which grants the authority to run Windows Enterprise on devices that are not Windows-based or on compatible third-party hosts that are not a customer's on-premises servers. VDA is an abbreviation for Virtual Desktop Access.
 
For what it consists of

Features suitable for enterprise use:
Access to the complete set of features that are included in the Windows Enterprise version, including enhanced security measures such as Credential Guard and Device Guard, as well as management tools.

Virtual Desktop Access (VDA): The "VDA" component gives users the ability to access virtual desktops that are hosted in a virtual desktop infrastructure (VDI) environment on Microsoft Azure or with approved qualified multitenant hosters (QMTH).
Per-User Licensing: The license is issued to users rather than specific devices, which provides flexibility for Bring Your Own Device (BYOD) scenarios and simplifies management by enabling users to use Windows Enterprise from numerous devices.

Characteristics and Traits

With a subscription model:
E3 Virtual Desktop Access (VDA) is a subscription that provides users with access to Windows Enterprise that is powered by cloud computing.

Attention, Organizations:
The software is designed for use by enterprises and is often licensed through volume licensing agreements. Additionally, it is frequently connected with other cloud services offered by Microsoft.
It simplifies Especially in contexts that allow users to use their own devices (also known as use Your Own Device, or BYOD), licensing is simplified because it focuses on the users.