You can purchase NSM On-Premises from a distributor or download a free trial from MySonicWall. The trial provides a 30-day license after which you need to purchase or remove it. When you purchase NSM you receive a fulfillment email with your Activation Key which you use to officially licenses our product.
NSM images for VMware, Hyper-V and KVM are available at MySonicWall. The image for an Azure system is available on the Microsoft Azure Marketplace.