Azure Data Box Disk is Generally Available with AES-256 hardware encryption for Linux based hosts. Customers in the US, EU and Japan can now choose to order either software encrypted (BitLocker) or hardware encrypted (self-encrypted) Data Box Disk.
Self-encrypted Data Box Disks provide copy performance on Linux which is comparable to BitLocker encrypted disks on Windows.
Learn more about Data Box Disk and get started migrating your on-premises data to Azure.