What makes Hyperoo's Hyper-V backup unique is that it isn't a local backup product, as you might expect. Hyperoo takes a scheduled snapshot of your running Windows Hyper-V VMs, encrypts the data, and transfers changes over your Internet connection to the Hyperoo cloud. Some might call Hyperoo "Backup as a Service." Hyperoo is fast, and can back up an entire 100 GB VM in just minutes. When needed, you can use the Hyperoo Restore Client to restore your data. Another interesting feature of Hyperoo is that you pay per VM -- with prices ranging from $65 to $79 per license depending how many you purchase.